HID flashlight 11.1V 4400mAh/rechargeable Li-ion battery 1. ... life 3,High capacity 4,No pollution HID flashlight 11.1V 4400mAh/rechargeable Li-ion batteryBasic Characteristics Nominal Voltage11 ... 85%RHTwo months: -20~+45°C,45~85%RHOne year: -5~+20°C,45~85%RHCycle life500 TIMES CYCLES ... 9. Fast charging 10. Light weight, small size 11. Large overcharge tolerance and safe performance 12. Self balance ...