It is very suitable for flashlight, camera, UAV, headlamp, remote control vehicle, etc Keep your devices powered with top-quality 3.7V Li-ion rechargeable batteries including 9900mAh button top and SANYO UR 14500. Shop now on 3.7V lithium polymer batteries high capacity 8000m... - Grandado We recommend to charge the battery every 3 months after receipt of the battery and maintain the voltage 3., 7-4., 0V Excellent Performance:battery has a real 8000 MAH, supports a stable output voltage of 3., 7 V, and makes the equipment work more stable and durable. Make Sure Device Polarity Matches with Battery Pack Connector Before Purchase!, !, !, -1., Battery Size; 2., Connector Model; 3., Connector Size; 4., Connector Polarity - THIS IS NOT UNIVERSAL!, !, ! Storage: Keep the cells in 40%-60% charged state during long period storage. Lampe Frontale Rechargeable Law Enforcement Duty Belt 26650 Rechargeable Batteries 6800mAh 3.7V Flat Top - 2 Pack For Flashlights 6800mAh 3.7V Rechargeable Flat Top Batteries For Flashlights Lithium Polymer Ion Battery Multipurpose & 1000 Cycles: no memory effect. Bonka 14.8V 8000mAh 25C 4S Lithium Polymer Battery Pack buy online at... Battery details:Battery type: Lithium battery packStandard voltage: 3., 7VBattery capacity: 8000mAhBattery size: 36*65mm/1., 41*2., 55inchCombination method: 1S2PCycle times: 1000Plug: Terminal plug (if you need other plugs, please contact)Package contents:1 x batteryBattery precautions:1., Turn off the device when the battery is low to avoid deep discharge., 2., Always disconnect the battery from the device when not in use., 3., Do not use or charge the battery if it is bloated, swollen, leaking, overheating or any other abnormalities., 4., Do not disassemble, puncture, shock or damage the battery. Improper use, such as short-circuiting or overcharging, may result in an explosion or fire.