Description Product Description Key Features Built-in cell balancer Built-in safety current prevents over charging Overview The 4000 2S LiPo offers not only double the flight time as the stock DX8 battery but also advanced safety and features. It also includes a built in safety current that shuts the battery off, to avoid overcharging and damaging the battery and radio. Plus a built in balancing system to make sure you get the longest life and power from your pack. Battery Application:  Transmitter Battery Battery Type:  LiPo Capacity:  4000 – 4999mAh Charge Protection Circuitry:  Yes Configuration:  2S Connector Type:  White TX Plug Height:  0.75 in (19mm) Length:  2.7 in (68mm) Voltage:  7.4V Width:  2.0 in (52mm) Wire Gauge:  20 AWG