[Sopper]

The paired wires travel back to the camper. It looks like household wiring (wires are attached to each other, side by side) and is pulled apart when it gets to the batteries. The 30 amp inline fuse is on a black / grey wire that is bundled with the paired wires as it runs back to the camper. My only white wire is screwed directly onto the frame near the propane tanks. This makes me think that one of the black wire pairs must be a ground for the camper lights, etc. that run off the battery.

Also note, I have not yet installed my power tongue jack and that my camper does have an 80 watt, TM installed solar panel.

I am assuming if I experiment with connections that I can use the outside front light as a good indication that the connection are sound?

Does anyone else have a 2010 2720 with solar panel and two batteries that could look at their connections for me?

Thanks again for everyone's contributions thus far!