Battery Type: Lithium Iron Phosphate Battery Battery Brand: VCELL/OEM Model: IFR26700-4000 Nominal Voltage: 3.2V Nominal Capacity: 4000mAh Charge Cut-Off Voltage: 3.65V Discharge Cut-Off Voltage: 2.0V Max Charge Current: 1.0C Maximum Continuous Discharge Current: 3.0C Peak Discharge Current: 5.0C( 2500 times Lifetime:10 Years Application: battery pack, ebike, e-scooter, household appliance, solar system, solar lights, etc.