Nominal Voltage: 3.7V

Nominal  Capacity:4000mAh

Max Charge Voltage: 4.2V

Cut-off Voltage of Discharge: 2.5V

Max Charge current: 1C

Max Discharge current: 1C

Dimension: 21*21*70mm

OEM/ODM: Accepted

More details, pls feel free to contact us.