Grepow 4000mAh 7.4V RX 2S1P Lipo battery with JST-XH connector, suitable for Spektrum DX9, DX8, DX7S, DX7 and futabaSpecifications: - Capacity: 4000mAh- Voltage: 7.4 V- Weight: 151.1g- Dimensions: 69.13 * 51.02 * 19.12mm (L * w * H)- Balance connector: JST-XH- Battery plug: EHR- Charging current: 1-3C recommended, 5C Max