{"title":"10400 Battery \u0026 Charger","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\u003e10400 Battery \u0026amp; Charger – Compact Short-Body Li-ion Cells + Dedicated Chargers, Space-Saving Power Solution\u003c\/h2\u003e\n    \u003cp\u003eWelcome to our \u003cstrong\u003e10400 Battery \u0026amp; Charger\u003c\/strong\u003e collection. The 10400 lithium-ion cell (approx. 10mm diameter × 40mm length) is a short-body derivative of the standard AAA (10440) format, engineered specifically for ultra-compact devices with extremely tight length constraints that still require a high-voltage 3.7V Li-ion platform. It retains the 10mm AAA diameter while reducing the length to approximately 40mm—shorter than a standard AAA and perfect for fitting into the most compact battery compartments. This collection offers a full range of 10400 cells—including high-capacity NMC and inherently safe LiFePO₄—with capacities from \u003cstrong\u003e200mAh to 400mAh\u003c\/strong\u003e, along with \u003cstrong\u003ededicated Li-ion chargers\u003c\/strong\u003e compatible with 10400\/10440\/14500\/16340 and more. Ideal for \u003cstrong\u003eminiature flashlights, headlamps, wearable electronics, compact medical devices, wireless sensors, smart home terminals, and any device with an extremely short cylindrical battery compartment\u003c\/strong\u003e.\u003c\/p\u003e\n\n    \u003ch3\u003eCore Advantages of 10400 Batteries\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eUltra-Compact Form Factor:\u003c\/strong\u003e Approximately 10mm diameter with a length of only ~40mm (shorter than standard AAA). Specifically engineered for tiny devices where space is at a premium.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHigh Voltage Platform:\u003c\/strong\u003e NMC versions deliver a nominal \u003cstrong\u003e3.7V\u003c\/strong\u003e (full charge 4.2V)—providing up to 3× the power of standard 1.5V alkaline cells in a much smaller footprint.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eRechargeable – Economical \u0026amp; Eco-Friendly:\u003c\/strong\u003e Supports \u003cstrong\u003e500–1,000+ charge\/discharge cycles\u003c\/strong\u003e, eliminating the need for constant disposable battery replacements and reducing environmental waste.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eFlexible Chemistry Options:\u003c\/strong\u003e Available in high-energy NMC (3.7V) and inherently safe LiFePO₄ (3.2V) formulations to meet diverse safety and voltage requirements.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eLow Self-Discharge:\u003c\/strong\u003e Monthly self-discharge as low as 3% ensures devices remain ready even after prolonged storage—perfect for intermittently used portable sensors.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eCore Advantages of 10400 Dedicated Chargers\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePrecision Charging Management:\u003c\/strong\u003e CC\/CV profile with automatic battery type detection (Li-ion\/LiFePO₄) and auto-termination to prevent overcharging.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eMultiple Safety Protections:\u003c\/strong\u003e Overcharge, over-discharge, overcurrent, short-circuit, reverse polarity, and overheat protection.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWide Size Compatibility:\u003c\/strong\u003e Supports 10400, 10440, 14500, 16340, 18350, and more—one charger for multiple small formats.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIndependent Charging Channels:\u003c\/strong\u003e Multi-bay chargers control each slot independently—mix cells of different charge levels and sizes.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eLCD Digital Display:\u003c\/strong\u003e Real-time monitoring of voltage, current, and charged capacity.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003e10400 vs. 10440 vs. 14500 – Key Comparison\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;\"\u003eParameter\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e\u003cstrong\u003e10400\u003c\/strong\u003e\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10440 (AAA)\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e14500 (AA)\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\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e~10mm × ~40mm\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e~10mm × ~44mm\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e~14mm × ~50mm\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\u003eTypical Capacity\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e200mAh – 400mAh\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e200mAh – 400mAh\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e600mAh – 1000mAh\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\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e3.2V \/ 3.7V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e3.2V \/ 3.7V\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e3.2V \/ 3.7V\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\u003eKey Strengths\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eUltra-short, fits extremely tight spaces\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eStandard AAA length, wide compatibility\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eAA length, larger 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\u003eTypical Applications\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eUltra-compact flashlights, wearables, tiny sensors\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eStandard flashlights, remotes, toys\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eHigh-power flashlights, portable radios\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003ch3\u003ePopular 10400 Battery \u0026amp; Charger Models – Quick Reference\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;\"\u003eCategory\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eModel\/Spec\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eFeatures\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\u003eHigh Capacity\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eINR10400 400mAh\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e400mAh \/ 1A, top choice for compact flashlights\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\u003eBalanced\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eICR10400 300mAh\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e300mAh \/ 0.5A, general consumer electronics\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\u003eLiFePO₄\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eIFR10400 200mAh\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e200mAh \/ 0.5A, 3.2V safe chemistry for medical\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\u003e2-Bay Charger\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eXTAR VC2\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eLCD display, supports 10400\/10440, USB input\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\u003e4-Bay Charger\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eNitecore D4\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eIndependent channels, auto-detection, LCD\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\u003eSingle-Bay Portable\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eXTAR MC1\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eUSB input, ultra-portable, perfect for travel\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003ch3\u003eTypical Specifications Range (10400 Battery \u0026amp; Charger)\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;\"\u003eParameter\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10400 Battery\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eCompatible Charger\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\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e3.2V (LiFePO₄) \/ 3.6V–3.7V (NMC)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eAuto-detection\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 Range\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e200mAh – 400mAh\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e—\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\u003eContinuous Discharge\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e0.5A – 1.5A\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e—\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\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e—\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eUSB 5V \/ DC 12V\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\u003eCharge Current\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e—\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e0.25A – 1A (adjustable\/adaptive)\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\u003eSize Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10mm × 40mm\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10400\/10440\/14500 and more\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003ch3\u003eTypical Applications\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 Combo\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;\"\u003eUltra-compact flashlights \/ EDC lights\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10400 NMC + Single-bay USB charger\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;\"\u003eWearable electronics \/ smart rings\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10400 LiFePO₄ + 2-bay LCD charger\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 \/ monitors\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10400 LiFePO₄ + LiFePO₄-compatible charger\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;\"\u003eWireless sensors \/ IoT terminals\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10400 Balanced + Multi-bay charger\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;\"\u003eSmart home terminals \/ remote controls\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e10400 High-Capacity + 2-bay charger\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003ch3\u003eHow to Choose the Right 10400 Battery \u0026amp; Charger?\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;\"\u003eYour Requirement\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eRecommended Battery Type\u003c\/th\u003e\n          \u003cth style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eRecommended Charger\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;\"\u003eI need maximum runtime for ultra-compact devices\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eHigh-Capacity NMC (400mAh)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e2-bay LCD charger\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;\"\u003eSafety is critical (medical\/emergency)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eLiFePO₄ (200mAh)\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eCharger with LiFePO₄ mode\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;\"\u003eI need portable charging for travel\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eAny 10400\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eSingle-bay USB portable charger\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;\"\u003eI need to charge multiple small cell types simultaneously\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e—\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eMulti-bay independent channel charger\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;\"\u003eI need bulk quantities or custom packs\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003eContact our sales team\u003c\/td\u003e\n          \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; text-align: left; vertical-align: middle;\"\u003e—\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\n    \u003ch3\u003e⚠️ 10400 Battery \u0026amp; Charger Safety Guidelines\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePrecise Length Matching:\u003c\/strong\u003e The 10400 is approximately 4mm shorter than a 10440. Carefully measure your device's battery compartment length before purchase to avoid contact or fitment issues.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eVoltage Compatibility Verification:\u003c\/strong\u003e 10400 voltage (3.7V) is significantly higher than standard 1.5V AAA cells. \u003cstrong\u003eInserting a 10400 into voltage-sensitive 1.5V devices may cause overvoltage damage.\u003c\/strong\u003e Always confirm your device supports 3.7V Li-ion before use.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDo Not Mix Chemistries:\u003c\/strong\u003e 3.2V LiFePO₄ and 3.7V NMC cells \u003cstrong\u003ecannot be mixed or charged with the same settings\u003c\/strong\u003e. Verify charger mode before charging.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eUse a Dedicated Li-ion Charger:\u003c\/strong\u003e 10400 cells require a \u003cstrong\u003eLi-ion-specific charger\u003c\/strong\u003e. Do not use NiMH\/NiCd chargers.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAvoid Over-Discharge:\u003c\/strong\u003e Stop discharging when voltage drops below 2.5V–2.8V (NMC) or 2.0V–2.5V (LiFePO₄). Recharge promptly.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAvoid Short Circuits and High Temperatures:\u003c\/strong\u003e Do not short the terminals. Keep away from fire, heat, and moisture.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDiscontinue if Damaged:\u003c\/strong\u003e Stop using cells with torn wraps, dents, or leakage. Recycle responsibly.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch3\u003eWhy Choose Our 10400 Battery \u0026amp; Charger Collection?\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eGenuine Grade-A Cells:\u003c\/strong\u003e Batteries from Vapcell, Samsung, LG, and other Tier-1 manufacturers. Chargers from XTAR, Nitecore, and other professional brands.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eFully Tested \u0026amp; Matched:\u003c\/strong\u003e Every battery batch undergoes capacity grading, IR testing, and voltage sorting.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eOne-Stop Shopping:\u003c\/strong\u003e Cells, chargers, and accessories all in one place—save time and effort.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eFlexible Purchasing:\u003c\/strong\u003e Single-cell retail, multi-pack discounts, tiered bulk pricing, and custom pack assembly.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eCertified \u0026amp; Documented:\u003c\/strong\u003e UN38.3, MSDS, CE, RoHS documentation provided.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eExpert Technical Support:\u003c\/strong\u003e Guidance on cell selection, charger matching, and after-sales service.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003e👇👇👇 Browse the product list below to find the perfect \u003cstrong\u003e10400 Battery \u0026amp; Charger\u003c\/strong\u003e combo for your application. For volume quotes or custom pack solutions, please contact our engineering team.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","products":[{"product_id":"delipow-rechargeable-10440-batteries-with-charger-3-7v-lithium-10440-batteries-ef-bc-88not-aa-or-aaa-batteries-ef-bc-89-rechargeable-lithium-ion-3-7-volts-10440-battery","title":"Delipow DLP-659 2-Slot LED Charger with 10400 3.7V 320mAh Flat Top Li-ion Batteries – 500mA×2 Fast Charging Kit for Mini Flashlights (2-Pack \/ 4-Pack 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=\"\"\u003eMeet the Delipow DLP-659, a practical 2-slot LED indicator charger bundled with high-performance 10400 3.7V 320mAh flat top Li-ion batteries in a distinct green finish. This compact kit is specifically designed for mini flashlights and specialty devices that require the short 10400 battery format. Choose from 2-Pack or 4-Pack options to perfectly suit your usage needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThe DLP-659 features intuitive Red-to-Green LED indicator lights for each of the 2 independent slots. While charging, the light glows Red; once the battery reaches full charge, it automatically switches to Green. Powered via a standard USB port (DC 5V 1-2A), the charger delivers a rapid 500mA×2 charging current, ensuring fast and efficient recharging. The built-in smart chip provides a precise cut-off voltage of 4.2V, automatically stopping the process to prevent overcharging and extend battery lifespan. The spring-loaded slots are universally designed to support a wide range of 3.6V\/3.7V Li-ion batteries, including 10440, 18650, 14500, 16340, and more.\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=\"\"\u003eComplete 2\/4-Piece Mini Power Kit:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Includes the Delipow DLP-659 2-Slot LED Indicator Charger and your choice of 2 or 4 pieces of 10400 3.7V 320mAh flat top Li-ion batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSpecialized 10400 Flat Top Battery:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Compact 10mm x 40mm size, specially engineered for mini flashlights and special battery compartments that require a flat top contact.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e500mA×2 Rapid Charging:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Delivers a fast 500mA charging current per independent slot via USB, significantly reducing downtime.\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 Red-to-Green LED Indicators:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Each slot features an independent LED light. Red indicates active charging; Green indicates the battery has reached a full charge.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePrecision 4.2V Cut-off Protection:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Built-in smart chip ensures an accurate cut-off voltage of 4.2V, effectively preventing overcharging and prolonging battery lifespan.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eUniversal Battery Compatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The spring-loaded sliding slots safely support a wide range of 3.6V\/3.7V Li-ion batteries, including 10440, 18500, 18650, 17670, 16340, and 14500.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eConvenient USB Input (5V 1-2A):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Powered via a standard USB port, works seamlessly with wall adapters, laptops, power banks, and car chargers for ultimate portability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eIndependent Charging Channels:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2 independent slots allow you to freely charge 1 to 2 batteries individually without affecting the other.\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\n\u003cbr\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSmart Charger (Delipow DLP-659):\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=\"\"\u003eModel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e DLP-659 2-Slot LED Indicator Charger\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eInput:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e DC 5V 1-2A (USB Port)\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 Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e DC 4.2V ~ 500mA×2\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCut-off Charging 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=\"\"\u003eCut-off Charging Current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e ≤50mA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eOperating Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 0-40°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=\"\"\u003eDisplay:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Red\/Green LED Indicators\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eChannels:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2 independent slots (Supports mixed charging)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 60mm x 118mm x 28mm\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=\"\"\u003eIncluded Battery (Delipow 10400 3.7V Flat Top Green):\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=\"\"\u003eType:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 10400 3.7V Li-ion Rechargeable 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=\"\"\u003eCapacity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 320mAh\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=\"\"\u003eTop Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Flat Top\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 10mm (Diameter) x 40mm (Height)\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 Quantity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e 2-Pack \/ 4-Pack (Selectable)\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=\"\"\u003eMini EDC Flashlights \u0026amp; Keychain Lights:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The ideal power source for compact, ultra-mini tactical flashlights and keychain lights that require the shorter 10400 battery format.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSpecialty Laser Pointers \u0026amp; Aimers:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Provides stable 3.7V power for compact laser aiming devices and pointers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSmall Remote Control Transmitters:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Powers mini transmitters and handheld controllers for hobbyist devices.\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 Medical Devices:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Suitable for compact digital blood pressure monitors and other specific portable medical instruments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eSmall Sensors \u0026amp; Alarm Systems:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Reliable backup power for miniaturized security sensors and alarm transmitters.\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: Can I use this 10400 battery as a replacement for a standard AAA battery?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eNO. Please exercise extreme caution!\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e While the 10400 shares similar physical dimensions to a standard AAA battery, it operates at \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e3.7V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e. Using a 3.7V battery in a device designed for 1.2V or 1.5V (like standard remotes, clocks, or toys) will instantly damage or destroy the device. It is only compatible with devices explicitly specified for 10400\/10440 or 3.7V power.\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 500mA×2 charging current?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: 500mA is a high charging current for 10400 batteries. It significantly reduces charging time. A 320mAh battery can typically reach a full charge in about 1 hour, ensuring your devices are ready to use quickly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ3: Can I charge two different-sized batteries at the same time?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: Yes! The DLP-659 features 2 independent slots with spring-loaded contacts. You can freely mix and charge different compatible 3.6V\/3.7V Li-ion batteries simultaneously without any issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ4: How do I know when the battery is fully charged?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: It is very simple. The DLP-659 features an independent Red-to-Green LED light for each slot. While charging, the light glows Red. Once the battery reaches the precise 4.2V cut-off voltage, the light automatically turns Green, indicating it is ready to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: What kind of charger should I use if I only buy the battery?\u003c\/span\u003e\u003c\/strong\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: You must use a charger specifically designed to charge 3.7V Li-ion batteries, such as the included DLP-659. Do not attempt to charge it in a standard AA\/AAA Ni-MH charger, as it will not cut off at the correct voltage.\u003c\/span\u003e\u003c\/p\u003e","brand":"DELIPOW","offers":[{"title":"2Pcs 10440 Battery + Charger","offer_id":51454189961462,"sku":"OAS801","price":9.98,"currency_code":"USD","in_stock":true},{"title":"4Pcs 10440 Battery + Charger","offer_id":51454189994230,"sku":"OAS802","price":15.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/delipow-rechargeable-10440-batteries-3.7v-lithium-usb-charger-kit-not-aa-aaa-main-2_42e9b1a3-4418-47ea-8227-cb64cf12db36.webp?v=1786967000"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/collections\/10400.jpg?v=1786615020","url":"https:\/\/oneandes.com\/collections\/10400-battery-charger.oembed","provider":"OneAndes","version":"1.0","type":"link"}