HID flashlight 11.1V 4400mAh/rechargeable Li-ion battery 1.Fast charging 2,500 cycle life 3,High capacity ... 1. High energy density 2. High working voltage for single battery cells 3. Pollution-free, environment friendly 4. Long cycle life ... , Voltage, platform time consistency is good 6. Simplifying battery management system (BMS) and battery charger 7. With short-circuit production function, safe and ...