Battery type: Li-polymer Capacity: 610 mAh Voltage: 7.4 V Energy: 4.51 Wh Number of cells: 2 Weight: 35 g Cell configuration: 2S1P Dimensions (length x width x height): 7.4 x 3.1 x 0.8 cm Discharge rate: 15 C Connection plug: BEC Balancer connector: XH 2.54 (3P) Current-carrying capacity: 25C Short-time discharge current (burst discharge rate): 25 C Height: 8 mm Diameter: 31 mm Package including:1Pcs 7.4V 610mAh battery .