Battery 18650

The UltrAspire 18650 Battery has 3400 MaH and is programmed for low amperageoutput to ensure your Lumen has the optimal power source for the bestperformance on the road or trail. Single 18650 Rechargeable Battery Details:Size: Ø=18.1-18.55mm H=65.3 Rating Voltage: 3.7V Capacity: 4.2V-4.3V ChargingMode: C.C/C.V. Charging Method: Standard Charging 0.2C Charging Time: StandardCharging 4-6Hours (in lighting unit) (2-3hours on charger) End of DischargeVoltage: 2.75V Overcharge Voltage: 4.2V-4.3V/cell Over Discharge Cut OffVoltage: 2.5V-4.5V/cell Over Current: 2.5-5.0A Short Circuit: Recover afterremoving the short circuit – Load Operating Temperature: Charging: 0~45?,Discharging:-20~+60?, Storage:-5~+35? Cycle Time: 500 cycle