Battery Brand: VCELL/OEM Battery Type: Lithium Polymer Battery Model: VP401020 Nominal Voltage: 3.7V Nominal Capacity: 55mAh Charge Cut-Off Voltage: 4.2V Discharge Cut-Off Voltage: 2.75V Max charge current: 1.0C Max continuous discharge current: 1.5C Peak discharge current: 5C(700 times Wire/Connector: TBD Application: Bluetooth headset, beauty equipment, selfie stick, smartwatch, etc.