Bioenno Power Lightweight 30C, 7.4V (2S), 5000 mAh LiPo Battery for RC Models Voltage: 7.4V (2S) Capacity: 5000 mAh Charge Rate: 1C Discharge Rate: 30C Dimensions: 6.02 in. x 1.93 in. x 0.71 in. (153 mm x 49 mm x 18 mm)