If you ever need to use it--press and hold while starting the engine. Coach batteries will connect to the chassis and provide power to start engine. As it will also work in reverse (providing power to the coach) there is really no need for that. Start the engine and it will provide power to start the generator, etc.
2012 Sunseeker 2300 Chevy
2012 Forest River Sunseeker 2300 Chevy