maxxamps

[MetalMan]

There are 3 sets of wires on a LVC (for the type we are discussing). One set measures the voltage of the battery, and connects to the speed control's battery wires. Another set connects to the speed control's receiver wire (that would normally plug into channel two). The third set connects to channel two on the receiver. The way the device works is it detects the voltage of the battery, and once the voltage gets low enough, it modifies the signal from the receiver to the speed control so that the motor pulses.
Let me know if you still need a picture.