[Dinsdale]

My Pace trailer never came with any provision for charging the trailer battery off the truck. The only one that get's juice is the trailer break-away battery. I'll bet a lot of other trailers are the same way and people don't know it. Upside is just like an RV with a battery isolator you won't kill the truck batteries while at the track for a weekend.

I put a small maintainer/charger in the generator compartment and plug the land line in while at home. The trailer battery will charge either when the gen set is running or I'm connected to another source. Last battery was good for 6 years.