Product name : 18650 2500mah Lithium Battery Normal capacity : 2500 mAh Minimum capacity : 2450 mAh Normal voltage : 3.6V Charging voltage : 4.2 A Discharge ending voltage : 2.75 A Standard charging current : 0.5C Standard discharge current : 0.5C Max charge current : 1C Max discharge current : 2C Max recommended charge and discharge cell body temperature : Charge : 0- 60 Discharge :- 20-60 Maximum short term allowable charge and discharge cell body temperature. Charging and discharging at these conditions will shorten cell cycle life. Weight : 50g