Battery type: Li-polymer Capacity: 400 mAh Voltage: 7.4 V Energy: 2.96 Wh Number of cells: 2 Weight: 25 g Cell configuration: 2S1P Dimensions (length x width x height): 4.1 x 2.0 x 1.7 cm Discharge rate: 15 C Connection plug: XH 2.54 2P Balancer connector: XH 2.54 (3P) Short-time discharge current (burst discharge rate): 25 C Height: 17 mm Diameter: 20 mm .