18650, Li-Ion, Lithium Ion, 2000mah, Laptop Battery, 7.2v, Lithium Battery, Polymer Li-Ion, Battery, Lifepo4, Ni-Cd, NameCylindrical lithium ion batteryModel18650Dimensions18 x 65mmVoltage3.7VWeight45gCapacity1400-2600mAhCycle ... , Environmental and SafetyThe cell is approved according UL 1642, CE This battery meets the requirements of Battery Directives and the battery parts are RoHS ...