1.26650 3.7V 4000mAh 2.size:26.5*65.0mm 3.1000 times cycle 4.CE,ROHS,UL 5.For led lights,ups backup battery,power tools ItemContentCapacityNominal Capacity: 4000 mAh Typical Capacity: 3950 mAh Minimum Capacity: 3900 mAhNominal Voltage3.7 VInternal Impednce≤ 70mΩDischarge Cut-off Voltage3.0 VMax Charge Voltage4.20±0.05 VStandard Charge Current0.5C(2 A)Rapid Charge Current1C(4 A)Standard Discharge ...