Result:

battery, instead it uses a large battery for all 12V power for the RV and that includes the breakaway | The diagram in the instructions for the Brake Rite EHB show the tow vehicles battery and the trailers...

of an RV-style 7-way vehicle-side connector with labels for each of the functions as they are typically wired | I bought a 2002 4 Star horse trailer in Oct 2013 and as we were driving back from the Midwest...