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.

Features
Built-in cell balancer
Built-in safety current prevents overcharging

Features
Battery Application: Transmitter Battery
Battery Type: LiPo
Capacity: 4000mAh
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