NO. Items Specifications 1 Charge voltage 4.2V 2 Nominal voltage 3.7V 3 Nominal capacity 60mAh 0.2C Discharge 4 Charge current Standard Charging 0.2C Rapid charge 1.0C 5 Standard Charging method 0.2C CC constant current charge to 4.2V,then CV(constant voltage 4.2V)charge till charge current decline to 0.02C 6 Charging time Standard Charging 5.0 hours (Ref.) Rapid charge 1.0 hours (Ref.) 7 Max.charge current 1.0C 8 Max.discharge current 1.0C 9 Discharge cut-off voltage 2.8V 10 Discharge temperature -20~+60 11 Temperature range for storage less than 1 month -20~+55 less than 3 month -20~+40 less than 1 year 0~+25 12 Cell Weight Approx 2.2g 13 Cell Dimension Length 19.0mm Max (not including tabs) Width 18.6mm Max Thickness 3.2mm Max