1.polymer battery 3.7V 1900mAh lithium 2.Lipo battery 3.Low self-discharging 4.high density of energy Basic SpecificationBattery TypeE702990Nominal Capacity1900mAh(@0.2C Discharge )Nominal Voltage 3.7V(@0.2C Discharge )Charging Voltage4.2V±0.5VStandard ChargeCurrent:300mAh(0.2C) End Voltage:4.2VMaximum Charge Current1900mAh(1.0C)Standard DischargeCurrent: 300mAh(0.2C) End Voltage:3VMaximum ...