18650, Li-Ion, Lithium Ion, 2000mah, Laptop Battery, 7.2v, Lithium Battery, Polymer Li-Ion, Battery, Lifepo4, Ni-Cd, NameCylindrical lithium ion batteryModel18650Dimensions18 x 65mmVoltage3 ... life500 timesCharging voltage4.2VDischarging end voltage2.75VPCB and battery pack is available;Application: telecommunications, portable office devices, video devices, electric Torches and ...