Lithium Battery 11.1V 5000mAh 52C 3S Battery for RC Helicopter RC Airplane RC Hobby with Dean-Style T Connector Quickly Recharged, long cycle life (150 times minimum), up to 200Wh/kg energy density. Professional LiPo Battery; Superior Lithium Polymer raw materials. Dimensions: 135 x 42 x 30mm Plug System:DEANS-T Plug Battery Type: Lithium Polymer (LiPO)