This lithium polymer battery is an upgrade to stock NiMH 2000mah battery that comes with your Spektrum DX7S, DX8 or DX9 radio. With 4000 mAH, you will have double the play time, plus, it's much faster to charge a lipo than NiMH. Designed to fit nicely into the battery compartment of DX7S/ DX8/ DX9 radio, all you need do to is throw away the padding foam that comes with stock battery and set your DX7 S/DX8/DX9 radio to lithium polymer battery mode.
*** This battery comes with a protection circuit board (PCB) that will cut the power in case any cell voltage drops below 2.8V to protect the cell. It helps when you forget to turn the radio off and the radio tries to drain all the power of the battery. The PCB will also restrict the charge to 4.2V max to prevent any overcharge.
*** This pack is recommended to use for the DX7 S/DX8/DX9 radio transmitter only, not as a receiver battery.
- Capacity: 4000 mAh
- Voltage: 7.4V (2S1P)
- Continuous discharge rating: 1C
- Dimension: 70 x 51 x 19.5 mm (L x W x H)
- Weight: 155g (including wires)
- Balance Plug : JST-XH
- Charge plug: standard servo type plug