Powerextra 30C 2200mAh 7.4v High Power Lithium Polymer Replacement Battery Packs For RC Airplane, RC Helicopter, RC Car/Truck, RC Boat-Battery Detai Battery Type: Lithium Polymer / Battery Volts: 7.4V / Battery Capacity: 2200mAh Change rate at 1C(2.2A) discharge rate is 66A(30C) Dimensions:0.7*1.3*4.1inches weight:4.3oz Plug Type: Mini Tamiya Products come with our wondershop is 30 days money back,and 24 Hours friendly customer service!