{"title":"Series 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":"assemble-2a-18650-battery-2000mah-18650-lithium-battery-packs-18650-series-packs-7-4v-11-1v2-14-8v-18-5v-22-2v-with-nickel-tab-for-hand-drill-power-tool-motor-electric-wrench","title":"TMR 18650 2000mAh 3.7V 1C Pre-Welded Li-ion Battery Pack – High Quality Cells with Nickel Tabs for DIY Power Tools \u0026 Flashlights (7.4V to 22.2V Multi-Shape Options)","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Description:\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eThese TMR 18650 2000mAh 3.7V 1C Lithium Battery Packs are high-quality, semi-assembled power solutions designed for DIY electronics, hobby projects, and professional retrofitting. Each pack is constructed using genuine TMR 18650-2000mAh cells and comes with nickel tabs already spot-welded in place, allowing for quick and hassle-free installation into your devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eBuilt with premium A-grade cells, these batteries deliver a true 2000mAh capacity with a stable 3.7V output. They feature a multi-layer leak-proof design with a fully inspected secondary explosion-proof structure and bottom safety vents, ensuring maximum safety, durability, and peace of mind. With an impressive 1500+ cycle life, these packs offer exceptional long-term value. Choose from a wide range of voltage configurations (7.4V, 11.1V, 14.8V, 18.5V, 22.2V) and various nickel tab layouts (Parallel, Triangle, Square, Convex) to perfectly match your project's requirements.\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=\"\"\u003ePre-Welded with Nickel Tabs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Comes with nickel strips already spot-welded for easy connection.\u003c\/span\u003e\u003cspan class=\"\"\u003e 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 cells from TMR with a stable 3.7V nominal voltage and 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.\u003c\/span\u003e\u003cspan class=\"\"\u003e 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=\"\"\u003eVersatile Voltage \u0026amp; Shape Options:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Available in 7.4V (2S), 11.1V (3S), 14.8V (4S), 18.5V (5S), and 22.2V (6S) configurations with various nickel tab layouts (Parallel, Triangle, Square, Convex) to fit different device compartments.\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=\"\"\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 (Pack Voltage: 7.4V \/ 11.1V \/ 14.8V \/ 18.5V \/ 22.2V options)\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=\"\"\u003ePack Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2S, 3S, 4S, 5S, 6S available\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePack Shape \u0026amp; Tab Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Parallel, Triangle, Square, Convex options available\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 (Single Cell):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Approx.\u003c\/span\u003e\u003cspan class=\"\"\u003e 43g\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\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=\"\"\u003eDIY Battery Pack Assemblies:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The perfect core for building custom power banks, energy storage systems, and portable stations.\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 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=\"\"\u003eRC Hobbies \u0026amp; Drones:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Powers remote-controlled cars, aircraft, and boat models with consistent 1C discharge.\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 Power Tools:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Ideal for retrofitting and powering cordless electric screwdrivers, small drills, and household 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=\"\"\u003eSmart Home Sensors \u0026amp; Security:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Reliable backup power for 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\u003cstrong\u003e\u003cspan class=\"\"\u003eQ1: What voltage and shape configurations are available?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: We offer a wide variety of configurations. Simply select your desired voltage (7.4V, 11.1V, 14.8V, 18.5V, 22.2V) and preferred nickel tab layout (Parallel, Triangle, Square, Convex) from the dropdown menu above to find the perfect fit for your device.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\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\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\u003cstrong\u003e\u003cspan class=\"\"\u003eQ4: How long does a 2000mAh battery take to fully charge?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: Using a standard 1C charger (2A charging current), a single 2000mAh cell typically takes approximately 1 to 1.5 hours to reach a full 4.2V charge.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: What is the advantage of the 1500+ cycle life?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: A 1500+ cycle life means these batteries can be recharged and used over 1500 times. This makes them extremely economical, reducing the need to buy new batteries frequently and minimizing environmental waste.\u003c\/span\u003e\u003c\/p\u003e","brand":"OneAndes","offers":[{"title":"2S","offer_id":51454191042806,"sku":"OAS824","price":5.98,"currency_code":"USD","in_stock":true},{"title":"3S","offer_id":51454191075574,"sku":"OAS825","price":7.98,"currency_code":"USD","in_stock":true},{"title":"3S Triangle","offer_id":51454191108342,"sku":"OAS826","price":7.98,"currency_code":"USD","in_stock":true},{"title":"4S","offer_id":51454191141110,"sku":"OAS827","price":12.98,"currency_code":"USD","in_stock":true},{"title":"4S Square","offer_id":51454191173878,"sku":"OAS828","price":12.98,"currency_code":"USD","in_stock":true},{"title":"5S","offer_id":51454191206646,"sku":"OAS829","price":15.98,"currency_code":"USD","in_stock":true},{"title":"5S 2+3","offer_id":51454191239414,"sku":"OAS830","price":15.98,"currency_code":"USD","in_stock":true},{"title":"6S","offer_id":51454191272182,"sku":"OAS831","price":18.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/images-productsassemble-2a-18650-battery-pack-series-kit-2S_4ef4073a-8ef2-49b7-b04e-33b469bee8f9.webp?v=1786967114"},{"product_id":"assemble-20a-18650-battery-2500mah-18650-lithium-battery-packs-18650-series-packs-7-4v-11-1v2-14-8v-18-5v-22-2v-with-nickel-tab-for-hand-drill-power-tool-motor-electric-wrench","title":"NUOXIANG NX INR18650-25P 2500mAh 3.7V 8C 20A High-Drain Pre-Welded Li-ion Battery Pack – Ultra-Low 14mΩ Resistance for High-Power Drills \u0026 Flashlights (7.4V to 22.2V Multi-Shape Options)","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProduct Description:\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eThese NUOXIANG NX INR18650-25P 2500mAh 3.7V 8C 20A High-Drain Li-ion Battery Packs are premium, high-performance power solutions engineered specifically for heavy-duty equipment and high-power DIY projects. \u003c\/span\u003e\u003cspan class=\"\"\u003eUtilizing genuine NUOXIANG NX INR18650-25P cells, each pack delivers a massive \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e20A continuous discharge current\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, ensuring powerful, stable, and efficient energy delivery for your most demanding tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eBuilt with advanced 8C high-rate technology, these cells operate reliably across a wide temperature range from -20°C to 80°C. Each pack comes with nickel tabs already spot-welded in place, allowing for quick and hassle-free integration into your devices. Choose from a wide range of voltage configurations (7.4V, 11.1V, 14.8V, 18.5V, 22.2V) and various nickel tab layouts (Parallel, Triangle, Square, Convex) to perfectly match your project's requirements.\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-Performance INR18650-25P Cells:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Premium-grade cells with a 2500mAh capacity and 3.7V nominal voltage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMassive 8C \/ 20A Discharge Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Delivers a powerful 20A continuous discharge current, providing explosive, stable power for high-torque power tools and flashlights.\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.\u003c\/span\u003e\u003cspan class=\"\"\u003e 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=\"\"\u003eVersatile Voltage \u0026amp; Shape Options:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Available in 7.4V (2S), 11.1V (3S), 14.8V (4S), 18.5V (5S), and 22.2V (6S) configurations with various nickel tab layouts (Parallel, Triangle, Square, Convex) to fit different device compartments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eLong-Lasting Performance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Built with premium materials and strict quality control for consistent, reliable power over numerous charge cycles.\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=\"\"\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 (Pack Voltage: 7.4V \/ 11.1V \/ 14.8V \/ 18.5V \/ 22.2V options)\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=\"\"\u003ePack Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2S, 3S, 4S, 5S, 6S available\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePack Shape \u0026amp; Tab Layout:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Parallel, Triangle, Square, Convex options available\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 (Single Cell):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Approx.\u003c\/span\u003e\u003cspan class=\"\"\u003e 43.8g\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\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=\"\"\u003eHigh-Torque Cordless Power Tools:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The ultimate power source for 18V\/21V-class cordless drills, impact drivers, and saws requiring massive 20A current bursts.\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-Power Tactical Flashlights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Delivers stable 20A discharge for high-lumen searchlights and tactical flashlights used in outdoor and professional 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=\"\"\u003eHigh-Performance 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.\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 power tools and 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\u003cstrong\u003e\u003cspan class=\"\"\u003eQ1: What is the advantage of the 8C \/ 20A discharge rate?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: The 8C \/ 20A discharge rate means this battery can deliver 20 amps of continuous current. This is significantly higher than standard 1C (2.5A) batteries, making it capable of powering high-torque drills, saws, and other high-demand equipment that standard cells cannot handle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ2: What does \"≤14mΩ\" internal resistance mean for my devices?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: 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\u003cstrong\u003e\u003cspan class=\"\"\u003eQ3: What voltage and shape configurations are available?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: We offer a wide variety of configurations. Simply select your desired voltage (7.4V, 11.1V, 14.8V, 18.5V, 22.2V) and preferred nickel tab layout (Parallel, Triangle, Square, Convex) from the dropdown menu above to find the perfect fit for your device.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\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\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: What is the temperature range for this battery pack?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: This pack supports a wide discharge temperature range of -20°C to 80°C. This makes it suitable for use in cold outdoor environments as well as high-temperature operation conditions.\u003c\/span\u003e\u003c\/p\u003e","brand":"OneAndes","offers":[{"title":"2S","offer_id":51454192156918,"sku":"OAS834","price":8.98,"currency_code":"USD","in_stock":true},{"title":"3S","offer_id":51454192189686,"sku":"OAS835","price":13.98,"currency_code":"USD","in_stock":true},{"title":"3S Triangle","offer_id":51454192222454,"sku":"OAS836","price":13.98,"currency_code":"USD","in_stock":true},{"title":"4S","offer_id":51454192255222,"sku":"OAS837","price":23.98,"currency_code":"USD","in_stock":true},{"title":"4S Square","offer_id":51454192287990,"sku":"OAS838","price":23.98,"currency_code":"USD","in_stock":true},{"title":"5S","offer_id":51454192320758,"sku":"OAS839","price":26.98,"currency_code":"USD","in_stock":true},{"title":"5S 2+3","offer_id":51454192353526,"sku":"OAS840","price":26.98,"currency_code":"USD","in_stock":true},{"title":"6S","offer_id":51454192386294,"sku":"OAS841","price":27.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/images-productsassemble-20a-18650-high-drain-battery-pack-kit-2S_273aa92e-abff-4df2-b1d4-a8f8c397c2a6.webp?v=1786967133"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/collections\/1000x234px-18650_b5fcfd8b-d3d0-43fc-9e8b-adc5934d61ba.jpg?v=1786591412","url":"https:\/\/oneandes.com\/collections\/18650-series-packs.oembed","provider":"OneAndes","version":"1.0","type":"link"}