BATTERY Specifications Nominal voltage 3.7V Nominal capacity 1500mAh Rechargeable Cycle : >500 times Charge current Standard Charging/Discharging: 0.5C Standard Charging method 0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C Charging time Standard Charging: 6.0hours(Ref.) Rapid charge: 2hours(Ref.) Max.charge current 1.0C(T≥10℃) Max.discharge current 2.0C(T≥0℃) Discharge cut-off voltage 2.75V Operating temperature Charging: 0℃~45℃ Discharging: -20℃~60℃ Storage temperature -10℃~ +45℃ Battery Weight Approx: 46-47g Battery Dimension Height: 65.4mm Max (not including tabs) Diameter: 18.1mm Max BATTERY CHARGER Rechargeable Battery Type: 26700/26650/26500/25500/22700/21700/20700/22650/22500/18700/18650/18500/18490/18350/17650/16650/16340/CR123A/14650/14500/10400 (without battery ) Compatible Battery Type: Li-ion Charger Type: USB Chemical Composition: Lithium Number of Batteries Included: NO UPC: Does not apply Chemical-Composite: Lithium Number of rechargeable batteries: 2 Input voltage: DC 5V Output voltage: 0.5 - 2.0A Input current: 2A Output current: 3.7-4.2V Function: Adjustable A number charging with output function. Size and weight Product weight: 0.120 kg Package weight: 0.01560 kg Package contents: 1 x charger, 1 x USB cable