An auxiliary Battery Eliminator Circuit (BEC) and method are provided. The auxiliary BEC may include a receiver plug-in port with a low voltage power and ground connection and a receiver communication connection and an electronic speed control plug-in port comprising a low voltage power and ground connection and an electronic speed control communication connection. In addition the auxiliary BEC may include a battery pre-wire connection for electrically coupling to a high voltage positive terminal of a high voltage battery. Wherein the auxiliary BEC passes through communication signals between a receiver and the electronic speed control via the receiver communication connection and the electronic speed control communication connection. Wherein the auxiliary BEC provides converted high voltage power from the high voltage battery for the receiver and herein the auxiliary BEC powers on and off corresponding to input from the low voltage power and ground connection of the electronic speed control.