Gens ace 4200mAh 7.4V 60C 2S2P Hardcase Lipo Battery Pack 10# with 4.0mm Banana to Deans Plug Official Car Parts Gensace Professional LiPo Battery; Superior Japan and Korea Lithium Polymer raw materials Quickly Recharged, long cycle life (150 times minimum), up to 200Wh/kg energy density Parameter: Weight: 0.50lb; Dimension(LxWxH): 3.74x1.81x0.98in; Connector, Deans Plug Applications: Traxxas rc cars What you get: Gensace LiPo Battery Pack with Deans Plug & Local after-sales service (located in Dublin, CA)