Originally Posted by Bluztravler
I recently bought a used Forester 3051s motorhome. I have managed to figure out most things on my own, but hope you folks can help with a question.
On my drivers seat, down low on the side facing the drivers door, there is a rocker switch with a picture of a battery on it: Can anyone tell me what it does? Thank you very much.
Emergency start switch. When held in (it is a momentary contact switch) it connects the house and coach batteries together. In case of a dead coach battery it allows you you to start the coach.
When you activate the switch you will hear the solenoid engage in the BCC (battery control center). The BCC is located in the stairwell.
The BCC will automatically connect the two batteries to charge based on a designed algorithm internal to the BCC’s battery isolation manager when connected to shore power.
Look up precision circuits BCC for the detailed info.