Rechargeable Lithium-Polymer Battery

Physical Dimensions ( L x W x H) 43mm (1.69 in) x 16mm (0.62 in) x 52mm (2.04 in), Weight Approx 48 g (1.69 oz), Electrical Rated Capacity 2000 mAh typical, Nominal Voltage 3.7 VDC, Charging Method Constant Current Constant Voltage, Max Charge Voltage 4.20 VDC, Max Continuous Discharge Current 1000 mA, Rec Charge Cut-Off 40 mA or 5 hours, Internal Impedance Approx 500 cycles> 70% of initial capacity (0.5C/0.5C), Over-current Detection 2.1 A to 5.5 A (7.2 to 11 mS delay), Short-circuit Detection MAX 320 mS, Ambient Conditions, Charge Retention/Storage, Temperature Range, Humidity 10 to 90% non-condensing