Battery Brand: VCELL/OEM Battery Type: Lithium Ion Battery(NCM) Model: ICR14500 Nominal Voltage: 3.7V Nominal Capacity: 800mAh Charge Cut-Off Voltage: 4.2V Discharge Cut-Off Voltage: 2.75V Standard charge current: 0.2C Max charge current: 1.0C Standard discharge current: 0.2C Max continuous discharge current: 3.0C Internal Impedance: 50m© Charge temperature: 0~45 Discharge temperature: -20~60 Size(D*H): 14.5*50.5mm Max Weight: 18.6g Approx Cycle life: >700