Model - IMR18650 Type: Li-Ion, Lithium Ion Capacity - (0.2CA）3016 mAh Nominal Voltage - 3.70V Charging Voltage - 4.2V Max. Charge Current - 2 CA Continuous Discharge Rating - 20.2A Max. Discharge Current - 40.3A Cell Diameter - 18 mm, Height 65 mm Cell Weight - (Approx.)55g