... 2.no memeory effect 3.UL,CE 4.professional workers 2000mAh 3.7v usb charging cable battery 3.7v rechargeable lithium batteries ... dischargeMinimum Capacity 1950mAh0.2C discharge2. Nominal Voltage3.7V 3. End Voltage3.0 V Capacity : from 40mAh to 50Ah; Voltage ... , PDA battery, Cellular phone battery, mobile phone battery, notebook battery, earphone battery, blue tooth battery, Medical devices battery ...