0-SPMB4000LPTX Spektrum 4000mAh 2S 7.4V LiPo Transmitter Battery: DX7s, DX8 <p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">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.</font></p>
<p><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Features</font><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif"><br />
Built-in cell balancer<br />
Built-in safety current prevents overcharging</font></p>
<p><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Features</font><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif"><br />
Battery Application: Transmitter Battery<br />
Battery Type: LiPo<br />
Capacity: 4000mAh<br />
Charge Protection Circuitry: Yes<br />
Configuration: 2S<br />
Connector Type: White TX Plug<br />
Height: 0.75 in (19mm)<br />
Length: 2.7 in (68mm)<br />
Voltage: 7.4V<br />
Width: 2.0 in (52mm)<br />
Wire Gauge: 20 AWG</font></p>