{"title":"Series-Parallel Packs 18650","description":"\u003cdetails\u003e\n  \u003csummary style=\"font-weight: bold; cursor: pointer; color: #00917A; font-size: 18px; margin-bottom: 10px;\"\u003e\n    📖 Click to view full specifications, comparison \u0026amp; safety guide\n  \u003c\/summary\u003e\n  \u003cdiv style=\"margin-top: 10px; line-height: 1.6;\"\u003e\n    \u003ch2\u003e18650 Series Packs – Increase Voltage, Power High-Voltage Devices, Custom Configurations Available\u003c\/h2\u003e\n    \u003cp\u003eWelcome to our \u003cstrong\u003e18650 Series Packs\u003c\/strong\u003e collection. When your device requires an operating voltage higher than a single 3.7V (or 3.2V LiFePO₄) cell, and you want to avoid bulky lead-acid batteries or expensive proprietary packs, series-connected 18650 battery packs offer the most flexible and cost-effective solution. By connecting cells positive-to-negative in a daisy-chain configuration, the pack \u003cstrong\u003evoltage multiplies\u003c\/strong\u003e while \u003cstrong\u003ecapacity (mAh) remains unchanged\u003c\/strong\u003e. This collection offers standard 2S (7.4V), 3S (11.1V), 4S (14.8V), and higher series configurations—ideal for power tools, e-bikes, medical equipment, robotics, RC models, and any application requiring DC supply above 5V.\u003c\/p\u003e\n\n    \u003ch3\u003eCore Advantages\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAdditive Voltage – Power High-Voltage Devices:\u003c\/strong\u003e Total pack voltage = single cell nominal voltage × number of series cells. Examples: 2S = \u003cstrong\u003e7.4V\u003c\/strong\u003e (suitable for 6V–8.4V devices); 3S = \u003cstrong\u003e11.1V\u003c\/strong\u003e (9V–12.6V); 4S = \u003cstrong\u003e14.8V\u003c\/strong\u003e (12V–16.8V).\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCapacity Remains Constant:\u003c\/strong\u003e Total pack capacity equals that of a single cell (e.g., a 3S pack using 3500mAh cells remains 3500mAh). Ideal for applications requiring higher voltage without the need for massive capacity.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eFlexible Voltage Customization:\u003c\/strong\u003e Configure any number of series cells—from 2S to 10S+—to precisely match motor drive voltages, audio amplifier rails, and industrial controller inputs.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCompatible with Standard Charging Solutions:\u003c\/strong\u003e Packs can be safely charged using a \u003cstrong\u003ebalance charger\u003c\/strong\u003e or an integrated \u003cstrong\u003eBMS protection board\u003c\/strong\u003e for convenient charge management.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; High Power Density:\u003c\/strong\u003e Compared to equivalent-voltage lead-acid or NiMH packs, 18650 series packs are significantly lighter, smaller, and deliver a flatter discharge curve.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eSeries (S) vs. Parallel (P) – Key Distinction\u003c\/h3\u003e\n    \u003ctable style=\"border-collapse: collapse; width: 100%; border: 1px solid #e0e0e0; margin-bottom: 20px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eFeature\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\u003cstrong\u003eSeries (S)\u003c\/strong\u003e\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eParallel (P)\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eAdds up (e.g., 3S = 11.1V)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eSame as single cell (3.7V \/ 3.2V)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eSame as single cell\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eAdds up (e.g., 2P = 2× capacity)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\u003cstrong\u003eDischarge Current\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eLimited by weakest cell in series\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eAdds up\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\u003cstrong\u003eBest Suited For\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eDevices requiring higher voltage\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eLonger runtime at same voltage\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003ch3\u003eTypical Series Pack Configurations\u003c\/h3\u003e\n    \u003ctable style=\"border-collapse: collapse; width: 100%; border: 1px solid #e0e0e0; margin-bottom: 20px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eConfiguration\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eNominal Voltage\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eFull Charge Voltage\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eSuitable Device Range\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eTypical Application\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\n\u003cstrong\u003e2S\u003c\/strong\u003e (2 cells)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e7.4V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e8.4V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e6V – 8.4V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eRC toys, portable speakers\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\n\u003cstrong\u003e3S\u003c\/strong\u003e (3 cells)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e11.1V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e12.6V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e9V – 12.6V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003ePower tools, RC models, drones\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\n\u003cstrong\u003e4S\u003c\/strong\u003e (4 cells)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e14.8V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e16.8V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e12V – 16.8V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eE-scooters, medical devices, robotics\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\n\u003cstrong\u003e5S\u003c\/strong\u003e (5 cells)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e18.5V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e21.0V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e15V – 21V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eE-bikes, high-power audio amps\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\n\u003cstrong\u003e6S\u003c\/strong\u003e (6 cells)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e22.2V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e25.2V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e18V – 25.2V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eGarden tools, light EVs\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\n\u003cstrong\u003e7S\u003c\/strong\u003e (7 cells)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e25.9V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e29.4V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e24V systems\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eElectric wheelchairs, AGVs\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003cp\u003e\u003cem\u003eNote: Voltages above based on 3.7V nominal Li-ion cells. For 3.2V LiFePO₄ series packs, please contact us separately.\u003c\/em\u003e\u003c\/p\u003e\n\n    \u003ch3\u003eCell Matching \u0026amp; Safety – Critical for Series Packs\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eStrict Capacity \u0026amp; IR Matching:\u003c\/strong\u003e All cells in a series string must be matched for capacity (±3%) and IR (±5mΩ). Mismatched cells lead to overcharge\/over-discharge of individual cells, causing safety hazards and rapid capacity fade.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eBalance Charging or BMS is Mandatory:\u003c\/strong\u003e Voltage imbalance between series cells is inevitable over time. \u003cstrong\u003eAlways use a balance charger or a BMS with balancing function\u003c\/strong\u003e to periodically equalize cell voltages and maximize pack lifespan.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSame Brand \u0026amp; Batch – No Exceptions:\u003c\/strong\u003e Series cells must be identical make, model, and production batch. Never mix old and new cells, or different cell chemistries.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eProper Welding \u0026amp; Insulation:\u003c\/strong\u003e Use pure nickel or nickel-plated steel strips for low-resistance connections. Install insulating separators between cells to prevent vibration-induced shorts.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eTypical Applications for 18650 Series Packs\u003c\/h3\u003e\n    \u003ctable style=\"border-collapse: collapse; width: 100%; border: 1px solid #e0e0e0; margin-bottom: 20px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background-color: #f8f9fa;\"\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eApplication\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eRecommended Series\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eWhy Series\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003ePower Tools (Drills, Saws, Impact Drivers)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e3S–5S, high-drain cells\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eProvides high voltage and current for strong torque\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eRC Models \/ Drones\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e3S–6S, high-drain cells\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eMatches brushless motor KV rating for burst power\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eE-Bikes \/ E-Scooters\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10S–13S (36V\/48V systems)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eStandard voltage platforms for pedal-assist systems\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003ePortable Medical Devices (Suction Pumps, Monitors)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e3S–4S, with BMS\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eStable high-voltage DC with built-in safety redundancy\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eMobile Robots \/ AGVs\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e6S–7S (24V systems)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eCompatible with industry-standard 24V motor drivers\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003ePortable Audio \/ Amplifiers\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e2S–3S\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eSupplies \u0026gt;5V required by amplifier ICs\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eEmergency Lighting \/ Backup Power\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e3S–4S\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eDirect replacement for 12V lead-acid, lighter weight\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003ch3\u003eWhy Choose Our 18650 Series Packs?\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePrecision Cell Matching:\u003c\/strong\u003e Every series pack is assembled using capacity-sorted (≤3% variance), IR-matched (≤5mΩ deviation), and voltage-balanced (±0.02V) Grade-A cells to ensure string consistency.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eProfessional Spot Welding:\u003c\/strong\u003e Constructed with \u003cstrong\u003e0.15mm–0.2mm pure nickel-plated steel strips\u003c\/strong\u003e for low-resistance, high-current handling and durable weld joints.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eFlexible Customization:\u003c\/strong\u003e Beyond standard 2S–6S, we offer custom series counts (7S–20S+), silicone lead wires, connectors (XT30, XT60, XT90, EC3, DC barrel), and integrated \u003cstrong\u003ebalancing BMS\u003c\/strong\u003e.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eOptional BMS Integration:\u003c\/strong\u003e Add a common-port or separate-port BMS providing overcharge, over-discharge, overcurrent, short-circuit, and passive balancing protection—enabling true \"plug-and-play\" safety.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eRobust Insulation:\u003c\/strong\u003e Each pack is finished with premium PVC heat shrink and insulating separators, with clearly marked positive and negative terminals.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eQuality Assurance:\u003c\/strong\u003e 12‑month warranty and dedicated technical support.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003e⚠️ Usage \u0026amp; Safety Notes\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eUse a Proper Charger:\u003c\/strong\u003e Series packs require a \u003cstrong\u003eLi-ion balance charger\u003c\/strong\u003e matched to the series count, or a dedicated charger for BMS-equipped packs. Never attempt to charge a series pack with a single-cell 4.2V charger.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePeriodic Voltage Balancing:\u003c\/strong\u003e Without an integrated BMS, measure individual cell voltages every 10–20 cycles. If any cell deviates by more than 0.1V, perform a balance charge.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAvoid Over-Discharge:\u003c\/strong\u003e Do not discharge any single cell below \u003cstrong\u003e2.8V–3.0V\u003c\/strong\u003e (depending on cell specifications). Over-discharge causes permanent capacity loss.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eStorage Recommendation:\u003c\/strong\u003e For long-term storage, maintain pack voltage at \u003cstrong\u003e3.7V–3.8V per cell\u003c\/strong\u003e and store in a cool, dry environment.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003e👇👇👇 Browse the standard series pack configurations below to select the appropriate series count (2S–6S) based on your device voltage requirements. For higher series counts, specific connectors, or integrated BMS solutions, please contact our engineering team for a customized quote.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","products":[{"product_id":"18-5v-4a-18650-5s2p-4000mah-rechargeable-li-ion-battery-with-nickel-tab-5-series-packs-2-parallel-packs-for-hand-drill-power-tool-motor-electric-wrench","title":"TMR 18650 18.5V 4000mAh 1C Pre-Welded Li-ion Battery Pack – 2P5S Layout with Nickel Tabs for DIY Power Tools \u0026 Flashlights","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Description:\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eThis TMR 18650 18.5V 4000mAh 1C Li-ion Battery Pack is a high-performance, pre-assembled power solution designed for DIY enthusiasts and professional retrofitting. Engineered in a \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e2 Parallel × 5 Series (2P5S)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e layout, it delivers a stable 18.5V output with a massive 4000mAh capacity, making it perfect for power-hungry 18V-class devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eConstructed using genuine TMR 18650-2000mAh cells, this battery pack comes with nickel tabs already spot-welded in place, allowing for quick and hassle-free integration into your projects. Built with a multi-layer leak-proof design and a fully inspected secondary explosion-proof structure, it ensures maximum safety and durability. With an impressive 1500+ cycle life, this pack offers exceptional long-term value and reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eKey Features:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCustom 2P5S Layout (18.5V 4000mAh):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Features a 2 Parallel × 5 Series configuration, delivering a powerful 18.5V output and a high 4000mAh capacity for extended runtimes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePre-Welded Nickel Tabs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Comes with nickel strips already spot-welded for easy connection. No need for complicated soldering or battery spot welding.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePremium TMR 18650 Cells:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e High-quality, true-to-spec 2000mAh 3.7V cells from TMR with a stable 1C discharge rate.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMulti-Layer Leak-Proof \u0026amp; Explosion-Proof Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Features a fully inspected secondary explosion-proof design, bottom sealing cap, and safety heat-dissipation vents to rapidly release gas in extreme cases, preventing swelling or explosion.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e1500+ Long Cycle Life:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Supports over 1500 recharge cycles. Economical, durable, and environmentally friendly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMercury-Free \u0026amp; Eco-Friendly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Safe, non-toxic, and environmentally friendly battery construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eStable Discharge Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Delivers consistent and stable voltage output, ensuring reliable power for your devices throughout the discharge cycle.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProfessional Quality Assurance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Manufactured by TMR, a trusted brand with rigorous quality control for long-lasting, dependable performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Parameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e TMR \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eConfiguration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2 Parallel × 5 Series (2P5S)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTotal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18.5V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTotal Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 4000mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSingle Cell Model:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18650 Li-ion Battery\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSingle Cell Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2000mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNominal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 3.7V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDischarge Rate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 1C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eInternal Resistance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e ≤50mΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCycle Life:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e ≥1500 times\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eWeight (Total):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Approx. 430g (based on 10 cells)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCharge Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 0°C to 45°C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDischarge Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e -10°C to 60°C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCharging Cut-off Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 4.2V (per cell) \/ 21V (total pack)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTab Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Pre-welded nickel tabs for easy connection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSafety Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Multi-layer leak-proof, secondary explosion-proof, bottom sealing cap, safety heat-dissipation vents\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eApplications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHigh-Performance LED Flashlights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Reliable, high-capacity power for high-lumen tactical flashlights and outdoor searchlights.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e18V Cordless Power Tools:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Ideal for retrofitting and powering cordless electric screwdrivers, drills, and other 18V-class DIY tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eRC Hobbies \u0026amp; Drones:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Powers remote-controlled aircraft, heavy-lift drones, and large-scale RC car models.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eOutdoor Portable Power Stations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e A core power module for building custom portable energy storage systems and outdoor power banks.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSmart Home \u0026amp; Security Systems:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Reliable backup power for high-power wireless sensors, security cameras, and smart doorbells.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eFrequently Asked Questions (FAQ):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ1: What does \"2P5S\" mean in this battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: \"2P5S\" means the pack is arranged in a 2 Parallel × 5 Series configuration. In simpler terms, it consists of 10 cells total: 5 sets of cells connected in series (to achieve 18.5V), with each series set having 2 cells connected in parallel (to achieve 4000mAh capacity).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ2: Are the nickel tabs already welded to the batteries?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: Yes! The nickel tabs are pre-spot-welded for easy connection. There is no need for complicated soldering or spot welding equipment. You can connect them directly to your device's wiring.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ3: What is the advantage of the multiple safety designs shown in the images?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: These battery packs feature a bottom sealing cap and safety heat-dissipation vents. Combined with a fully inspected secondary explosion-proof design, these features safely release internal gases in extreme conditions, effectively preventing battery swelling, leakage, or explosion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ4: How do I charge this 18.5V 4000mAh battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: You must use a charger specifically designed for 18.5V Lithium-ion battery packs. The charger must support a cut-off voltage of 21V. We recommend using a dedicated smart charger with over-charge protection for your specific 18.5V application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: Why should I choose this pre-welded pack over buying individual cells?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: Buying individual cells requires professional spot welding equipment and complex assembly skills, which is time-consuming and carries safety risks. This pre-welded pack eliminates the assembly work, ensuring correct battery alignment, proper connections, and immediate ready-to-use convenience.\u003c\/span\u003e\u003c\/p\u003e","brand":"OneAndes","offers":[{"title":"Default Title","offer_id":51454192025846,"sku":"OAS832","price":29.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/images-products185v-4a-5s2p-4000mah-18650-pack_b1825382-d1cf-4b3b-84d7-cf139d42e70c.webp?v=1786967067"},{"product_id":"18-5v-6a-18650-5s3p-6000mah-rechargeable-li-ion-battery-with-nickel-tab-5-series-packs-3-parallel-packs-for-hand-drill-power-tool-motor-electric-wrench","title":"TMR 18650 18.5V 6000mAh 1C Pre-Welded Li-ion Battery Pack – 3 Parallel 5 Series (3P5S) Layout with Nickel Tabs for Extended-Run 18V Power Tools \u0026 Flashlights","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Description:\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eThis TMR 18650 18.5V 6000mAh 1C Li-ion Battery Pack is a premium, ultra-high-capacity power solution designed for professionals and serious DIY enthusiasts who demand maximum runtime. Engineered in a \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e3 Parallel × 5 Series (3P5S)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e layout, it delivers a stable 18.5V output with a massive 6000mAh capacity, offering 50% more runtime compared to standard 4000mAh 18V packs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eConstructed using genuine high-quality 18650 cells, this battery pack comes with nickel tabs already spot-welded in place, allowing for quick and hassle-free integration into your projects. The multi-layer safety design and advanced spot welding ensure maximum durability, stability, and user safety. With a reliable 1C discharge rate, this ultra-capacity pack provides extended, dependable performance for your most demanding devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eKey Features:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eUltra-High-Capacity 3P5S Layout (18.5V 6000mAh):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Features a 3 Parallel × 5 Series configuration, delivering a powerful 18.5V output and a massive 6000mAh capacity for extended runtimes (50% more than standard 4000mAh packs).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePre-Welded Nickel Tabs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Comes with nickel strips already spot-welded for easy connection. No need for complicated soldering or battery spot welding.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePremium 18650 Cells:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Built with high-quality, true-to-spec 18650 cells with a stable 1C discharge rate, ensuring reliable power delivery.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eAdvanced Spot Welding Technology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Professional spot welding ensures tight, secure connections between cells, reducing internal resistance and enhancing long-term stability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMulti-Layer Safety Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Designed with rigorous safety standards to prevent leakage, short circuits, and overheating, ensuring safe operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e6000mAh Ultra Capacity for Extended Runtimes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Provides 50% more energy than standard 4000mAh packs, allowing your devices to run much longer between charges.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eReady-to-Use Convenience:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Pre-assembled and pre-welded, eliminating the hassle and risks of DIY assembly, and ready to connect immediately.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Parameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e TMR\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eConfiguration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 3 Parallel × 5 Series (3P5S)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTotal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18.5V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTotal Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 6000mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCell Model:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18650 Li-ion Battery\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSingle Cell Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2000mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNominal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 3.7V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDischarge Rate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 1C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTab Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Pre-welded nickel tabs for easy connection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSafety Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Multi-layer safety protection, advanced spot welding\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18.5V Class Power Tools \u0026amp; High-Drain Devices\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eApplications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHeavy-Duty 18V Cordless Power Tools:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The ultimate power source for retrofitting and powering high-torque 18V cordless drills, saws, and impact drivers for long work sessions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHigh-Performance LED Flashlights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Reliable, ultra-long-lasting power for high-lumen tactical flashlights and outdoor searchlights used in extended operations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eOutdoor Portable Power Stations:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e A core high-capacity power module for building custom portable energy storage systems and outdoor power banks.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eRC Hobbies \u0026amp; Drones:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Powers remote-controlled aircraft, heavy-lift drones, and large-scale RC car models requiring extended flight\/run times.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSmart Home \u0026amp; Security Systems:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Reliable backup power for high-power wireless sensors and security systems requiring long standby times.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eFrequently Asked Questions (FAQ):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ1: What does \"3P5S\" mean in this battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: \"3P5S\" means the pack is arranged in a 3 Parallel × 5 Series configuration. It consists of 15 cells total: 5 sets of cells connected in series (to achieve 18.5V), with each series set having 3 cells connected in parallel (to achieve 6000mAh capacity). This provides significantly longer runtime than standard 5S2P (4000mAh) packs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ2: Are the nickel tabs already welded to the batteries?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: Yes! The nickel tabs are pre-spot-welded. There is no need for complicated soldering or spot welding equipment. You can connect them directly to your device's wiring.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ3: What is the advantage of the 6000mAh capacity over standard 4000mAh packs?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: The 6000mAh capacity provides 50% more energy than standard 4000mAh 18V packs. This means your power tools and devices will run significantly longer on a single charge, perfect for heavy-duty, extended operations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ4: How do I charge this 3P5S 6000mAh battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: You must use a charger specifically designed for 18.5V\/21V Lithium-ion battery packs. The charger must support a cut-off voltage of 21V. We recommend using a dedicated smart charger with over-charge protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: Why should I choose this pre-welded pack over buying individual cells?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: Buying individual cells requires professional spot welding equipment and complex assembly skills, which is time-consuming and carries safety risks. This pre-welded pack eliminates the assembly work, ensuring correct connections and immediate ready-to-use convenience.\u003c\/span\u003e\u003c\/p\u003e","brand":"OneAndes","offers":[{"title":"Default Title","offer_id":51454192058614,"sku":"OAS833","price":47.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/images-products185v-6a-5s3p-6000mah-18650-pack_62956226-9bca-4316-a40e-76680defa67f.webp?v=1786967070"},{"product_id":"18-5v-40a-18650-5s2p-5000mah-rechargeable-li-ion-battery-with-nickel-tab-5-series-packs-2-parallel-packs-for-hand-drill-power-tool-motor-electric-wrench","title":"NUOXIANG NX INR18650-25P 18.5V 5000mAh 8C 20A Pre-Welded Li-ion Battery Pack – 2P5S Layout with Nickel Tabs for High-Power Drills \u0026 Equipment","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Description:\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eThis NUOXIANG NX INR18650-25P 18.5V 5000mAh 8C 20A Pre-Welded Li-ion Battery Pack is a premium high-performance power solution engineered for heavy-duty applications. Built in a \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e2 Parallel × 5 Series (2P5S)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e layout, it delivers a powerful 18.5V output and a high-capacity 5000mAh runtime, making it ideal for 18V-class cordless power tools, high-intensity lighting, and advanced RC equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eFeaturing genuine INR18650-25P cells with an impressive \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e8C \/ 20A continuous discharge rate\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e and an ultra-low internal resistance of \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e≤14mΩ\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e, this battery pack ensures explosive, stable power delivery even under extreme load. The nickel tabs come pre-spot-welded, allowing for quick, hassle-free connection directly to your device's wiring. With a wide operating temperature range, it performs reliably in both cold and hot environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eKey Features:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHigh-Capacity 2P5S Layout (18.5V 5000mAh):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Features a 2 Parallel × 5 Series configuration, delivering a stable 18.5V output and a reliable 5000mAh capacity for extended runtimes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e8C \/ 20A Massive Discharge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Utilizes INR18650-25P cells to provide a powerful 20A continuous discharge, meeting the demands of heavy-duty power tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eUltra-Low Internal Resistance (≤14mΩ):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Ensures minimal heat generation and maximum energy transfer efficiency during heavy, sustained use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePre-Welded Nickel Tabs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Comes with nickel strips already spot-welded for easy connection. No need for complicated soldering or battery spot welding.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eWide Operating Temperature (-20°C to 80°C):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Guarantees reliable performance across extreme temperature fluctuations, suitable for diverse environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProfessional Quality Assurance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Manufactured by NUOXIANG NX, a trusted brand in high-performance power solutions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Parameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e NUOXIANG NX\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCell Model:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e INR18650-25P\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eConfiguration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2 Parallel × 5 Series (2P5S)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTotal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18.5V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTotal Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 5000mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSingle Cell Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2500mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNominal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 3.7V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDischarge Rate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 8C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMax Continuous Discharge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 20A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eInternal Resistance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e ≤14mΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTab Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Pre-welded nickel tabs for easy connection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCharge Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 0°C to 50°C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDischarge Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e -20°C to 80°C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCharging Cut-off Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 4.2V (per cell)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCell Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18mm (Diameter) x 65mm (Height) Flat Top\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eApplications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e18V-Class Cordless Power Tools:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The perfect power upgrade for 18V cordless drills, impact drivers, saws, and other high-torque tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHigh-Performance Tactical Flashlights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Delivers stable 20A discharge for high-lumen searchlights and tactical flashlights in professional and outdoor settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eRC Hobbies \u0026amp; Drones:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Powers high-torque RC cars, heavy-lift drones, and advanced RC aircraft.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePortable Energy Storage Systems:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e A reliable core for building custom high-discharge portable power stations and energy storage systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProfessional DIY Projects:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The ideal power solution for makers and DIY enthusiasts building custom high-current devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eFrequently Asked Questions (FAQ):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ1: What does \"2P5S\" mean in this battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: \"2P5S\" means the pack is arranged in a 2 Parallel × 5 Series configuration. It consists of 10 cells total: 5 sets of cells connected in series (to achieve 18.5V), with each series set having 2 cells connected in parallel (to achieve 5000mAh capacity).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ2: What is the advantage of the 8C \/ 20A discharge rate?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: The 8C \/ 20A discharge rate means this battery can deliver 20 amps of continuous current. This is significantly higher than standard 1C batteries, making it capable of powering high-torque drills and saws that standard cells cannot handle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ3: What does \"≤14mΩ\" internal resistance mean for my devices?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: Ultra-low internal resistance (≤14mΩ) means the battery generates much less heat and loses less energy during high-current discharge. This translates to more power reaching your device and longer battery life, especially under heavy loads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ4: Are the nickel tabs already welded to the batteries?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: Yes! The nickel tabs are pre-spot-welded for easy connection. There is no need for complicated soldering or spot welding equipment. You can connect them directly to your device's wiring.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: How do I charge this 2P5S 5000mAh battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: You must use a charger specifically designed for 18.5V\/21V Lithium-ion battery packs. The charger must support a cut-off voltage of 21V. We recommend using a dedicated smart charger with over-charge protection.\u003c\/span\u003e\u003c\/p\u003e","brand":"OneAndes","offers":[{"title":"Default Title","offer_id":51454192091382,"sku":"OAS842","price":49.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/images-products185v-40a-5s2p-5000mah-18650-pack_3dc44923-bb3e-462a-bd85-34cdcda8acb2.webp?v=1786967080"},{"product_id":"18-5v-60a-18650-5s3p-7500mah-rechargeable-li-ion-battery-with-nickel-tab-5-series-packs-3-parallel-packs-for-hand-drill-power-tool-motor-electric-wrench","title":"NUOXIANG NX INR18650-25P 18.5V 7500mAh 8C 20A Pre-Welded Li-ion Battery Pack – 3P5S Layout with Nickel Tabs for Ultra-Long Run High-Power Drills \u0026 Heavy Equipment","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Description:\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eThis NUOXIANG NX INR18650-25P 18.5V 7500mAh 8C 20A Pre-Welded Li-ion Battery Pack is the flagship high-capacity power solution for the most demanding heavy-duty applications. Built in a \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e3 Parallel × 5 Series (3P5S)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e layout, it delivers a powerful 18.5V output and an ultra-high 7500mAh capacity, providing maximum runtime for 18V-class cordless power tools, heavy-lift drones, and high-intensity professional equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eFeaturing genuine INR18650-25P cells with an impressive \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e8C \/ 20A continuous discharge rate\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e and an ultra-low internal resistance of \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e≤14mΩ\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e, this battery pack ensures explosive, stable power delivery even under extreme sustained load. With 15 high-quality cells carefully spot-welded into place, it offers unparalleled energy density and endurance. The nickel tabs come pre-spot-welded, allowing for quick, hassle-free connection directly to your device's wiring. With a wide operating temperature range, it performs reliably in both cold and hot environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eKey Features:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eUltra-High-Capacity 3P5S Layout (18.5V 7500mAh):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Features a 3 Parallel × 5 Series configuration, delivering a stable 18.5V output and a massive 7500mAh capacity for extended runtimes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e8C \/ 20A Massive Discharge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Utilizes high-performance INR18650-25P cells to provide a powerful 20A continuous discharge, meeting the demands of heavy-duty power tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eUltra-Low Internal Resistance (≤14mΩ):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Ensures minimal heat generation and maximum energy transfer efficiency during heavy, sustained use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePre-Welded Nickel Tabs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Comes with nickel strips already spot-welded for easy connection. No need for complicated soldering or battery spot welding.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eWide Operating Temperature (-20°C to 80°C):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Guarantees reliable performance across extreme temperature fluctuations, suitable for diverse environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProfessional Quality Assurance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Manufactured by NUOXIANG NX, a trusted brand in high-performance power solutions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePremium Construction:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Built with 15 genuine INR18650-25P cells for superior durability and long-term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Parameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e NUOXIANG NX\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCell Model:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e INR18650-25P\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eConfiguration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 3 Parallel × 5 Series (3P5S)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTotal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18.5V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTotal Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 7500mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSingle Cell Capacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2500mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNominal Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 3.7V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDischarge Rate:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 8C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMax Continuous Discharge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 20A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eInternal Resistance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e ≤14mΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTab Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Pre-welded nickel tabs for easy connection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCharge Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 0°C to 50°C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDischarge Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e -20°C to 80°C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCharging Cut-off Voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 4.2V (per cell)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCell Dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 18mm (Diameter) x 65mm (Height) Flat Top\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eApplications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHeavy-Duty 18V-Class Cordless Power Tools:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The ultimate power upgrade for high-torque 18V cordless drills, saws, and impact drivers requiring maximum runtime.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHigh-Intensity Tactical Flashlights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Delivers stable 20A discharge for high-lumen searchlights and tactical flashlights in professional and outdoor settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHeavy-Lift RC Hobbies \u0026amp; Drones:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Powers high-torque RC cars, heavy-lift drones, and advanced RC aircraft requiring extended flight\/run times.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePortable Energy Storage Systems:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e A reliable core for building custom high-discharge portable power stations and energy storage systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProfessional DIY Projects:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The ideal power solution for makers and DIY enthusiasts building custom high-current devices requiring long endurance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eFrequently Asked Questions (FAQ):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ1: What does \"3P5S\" mean in this battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: \"3P5S\" means the pack is arranged in a 3 Parallel × 5 Series configuration. It consists of 15 cells total: 5 sets of cells connected in series (to achieve 18.5V), with each series set having 3 cells connected in parallel (to achieve 7500mAh capacity). This provides significantly longer runtime than standard 2P5S (5000mAh) packs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ2: What is the advantage of the 7500mAh capacity?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: The 7500mAh capacity provides the maximum runtime in the 8C 18.5V series. With 50% more capacity than the 5000mAh version, this pack is perfect for heavy-duty equipment that requires long, uninterrupted use without frequent recharging.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ3: What is the advantage of the 8C \/ 20A discharge rate?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: The 8C \/ 20A discharge rate means this battery can deliver 20 amps of continuous current. This is significantly higher than standard 1C batteries, making it capable of powering high-torque drills and saws that standard cells cannot handle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ4: Are the nickel tabs already welded to the batteries?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: Yes! The nickel tabs are pre-spot-welded for easy connection. There is no need for complicated soldering or spot welding equipment. You can connect them directly to your device's wiring.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: How do I charge this 3P5S 7500mAh battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: You must use a charger specifically designed for 18.5V\/21V Lithium-ion battery packs. The charger must support a cut-off voltage of 21V. We recommend using a dedicated smart charger with over-charge protection.\u003c\/span\u003e\u003c\/p\u003e","brand":"OneAndes","offers":[{"title":"Default Title","offer_id":51454192419062,"sku":"OAS843","price":64.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/images-products185v-60a-5s3p-7500mah-18650-ultra-power-pack_6afcda6c-7da9-4281-9ce4-e9eeaa391b3c.webp?v=1786967090"},{"product_id":"ufine-ufx18650-7-4v-5200mah-li-ion-battery-pack-2s2p-with-pcb-pcm-for-medical-device-industrial-equipment","title":"Ufine UFX18650 7.4V 5200mAh Li-ion Battery Pack 2S2P with PCB \/ PCM for Medical Device \u0026 Industrial Equipment","description":"\u003ch3\u003e📝 Product Description\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eIntroducing the \u003cstrong\u003eUfine UFX18650 7.4V 5200mAh Li-ion Battery Pack (2S2P)\u003c\/strong\u003e —a high-performance, safety-certified power solution designed specifically for \u003cstrong\u003emedical devices and industrial equipment\u003c\/strong\u003e 🏥⚙️.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eBuilt with precision and reliability in mind, this battery pack features a \u003cstrong\u003e2S2P configuration\u003c\/strong\u003e that delivers a perfect balance of \u003cstrong\u003ecapacity (5200mAh)\u003c\/strong\u003e and \u003cstrong\u003evoltage (7.4V)\u003c\/strong\u003e , ensuring stable and long-lasting power for your most demanding applications 🔋✨.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eWhat sets the UFX series apart is its \u003cstrong\u003eintegrated PCB\/PCM (Protection Circuit Module)\u003c\/strong\u003e , which safeguards against \u003cstrong\u003eovercharge, over-discharge, over-current, and short circuits\u003c\/strong\u003e 🛡️. Combined with \u003cstrong\u003eUL, CE, RoHS, and UN38.3 certifications\u003c\/strong\u003e, this battery pack meets the strictest international safety standards—giving you peace of mind for global distribution 🌍✅.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eAs a \u003cstrong\u003eprofessional OEM\/ODM manufacturer\u003c\/strong\u003e with over 15 years of experience, Ufine offers \u003cstrong\u003efull customization options\u003c\/strong\u003e, including wire gauge, connector types (JST, Molex, etc.), and packaging materials (PVC or PVC+plastic shell). Whether you're developing a \u003cstrong\u003eportable medical device\u003c\/strong\u003e, an \u003cstrong\u003eindustrial instrument\u003c\/strong\u003e, or a \u003cstrong\u003especialized electronic system\u003c\/strong\u003e, we deliver power solutions tailored to your exact specifications 🤝🔧.\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003eChoose Ufine for \u003cstrong\u003ereliable, safe, and customizable lithium battery solutions\u003c\/strong\u003e that power innovation across the globe 🌟.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e⚡ Key Features\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\"\u003e\n\u003cdiv class=\"ds-scroll-area__gutters\"\u003e\n\u003cdiv class=\"ds-scroll-area__horizontal-gutter\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"ds-scroll-area__vertical-gutter\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003cbr\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e🔋 High Capacity \u0026amp; Stable Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5200mAh capacity with 7.4V nominal voltage—ideal for long-lasting power in demanding applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e🛡️ Integrated PCB\/PCM Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in protection circuit module prevents overcharge, over-discharge, over-current, and short-circuit for enhanced safety and longevity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e✅ International Safety Certifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant with \u003cstrong\u003eKC CB\u003c\/strong\u003e standards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e🔧 Full Customization (OEM\/ODM)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCustomizable wire length, connector types (JST, Molex, etc.), and packaging (PVC \/ PVC+plastic shell) to meet your unique design requirements.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e🏭 Trusted Manufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eManufactured by Ufine—a professional lithium battery supplier with over 15 years of experience serving 1000+ global clients.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e📦 Reliable 2S2P Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-series, 2-parallel cell arrangement ensures consistent performance and balanced power output.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cbr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e🏆 Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e🏥 Medical Devices\u003c\/strong\u003e\u003cbr\u003ePortable medical monitors, infusion pumps, ventilators, diagnostic equipment, and home healthcare devices—where safety and reliability are critical.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e⚙️ Industrial Equipment\u003c\/strong\u003e\u003cbr\u003eIndustrial instrumentation, automation systems, robotic devices, inspection tools, and factory automation equipment that demand stable, long-cycle power.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e📡 Portable Electronics\u003c\/strong\u003e\u003cbr\u003eHandheld terminals, data loggers, communication devices, and portable test instruments requiring compact yet powerful energy solutions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e🔌 Backup Power Systems\u003c\/strong\u003e\u003cbr\u003eSmall-scale UPS (uninterruptible power supplies), emergency lighting systems, and backup power modules for critical applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e📦 Custom OEM\/ODM Projects\u003c\/strong\u003e\u003cbr\u003eIdeal for any application requiring \u003cstrong\u003ecustomized battery solutions\u003c\/strong\u003e—from prototyping to mass production, we adapt to your specific needs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ufine","offers":[{"title":"Default Title","offer_id":51454192746742,"sku":"OAS855","price":48.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/imagesfenix-3500mah-18650-battery-main_df0be05f-25c7-486e-b120-5bcd432cc354.webp?v=1786967145"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/collections\/1000x234px-18650_ece2a910-5fd6-401b-a24a-92f540502a0a.jpg?v=1786592993","url":"https:\/\/oneandes.com\/collections\/18650-series-parallel-packs.oembed","provider":"OneAndes","version":"1.0","type":"link"}