Cell Type UR18650A Specifications Nominal Capacity Nominal Voltage Charging Method Charging Voltage Charging Current Charging Time Ambient Temperature Weight (Max.) (D) Dimensions (Max.) 64.7mm Dimensions(Typ.) H of D 18.05mm Bare Cell d 9.0mm Discharged State after Assembling Charge Discharge Storage Min.2150mAh 3.6V Constant Current -Constant Voltage 4.2V Std.1505mA 3.0hrs. 0ÿ^ +40! -20ÿ^ +60! -20ÿ^ +50! 43.0g 18.10mm 64.80mm 464Wh/l 180Wh/kg (H) Volumetric Energy Density Gravimetric Energy.