Dayle1 wrote:
Any trailer with a residential refer should have a dedicated 12v system isolated from the primary battery or a shutoff circuit to prevent draining the primary battery.
Why? The +12VDC wire (pin #4 in the Pollak connector) has no problem keeping the trailer's battery bank charged while we're on the road. If I were running with no +12VDC feed from the truck as some suggest, then that could be a problem insofar as the breakaway system is concerned, but as I've said repeatedly, I would never run without the +12VDC feed being connected. It's there for an important, valid, safety-related reason.
Rusty
