Li-ion cell with PCB Type: 18650 Capacity: 2600 mAh (2450 mAh) Nominal Voltage: 3.6 - 3.7 V Cut-off voltage: 4.2 V Discharge current (PCB): 4.5 A Discharge Cut-off voltage: 2.75 V Charging process: CC-CV Diameter: 18,4 mm Lenght: 68.5 mm Weight: 47 g Button Top: Protection circuit integrated Note: Incorrect handling causes damage. Use only Li-ion charger to charge the cell.