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 ... *180mm (L*W*H) Gross Weight: 8.6Kg/Carton Laptop Battery 16.8V Cylindrical Battery 2200mAh (JHY18650)