B+ motorhomes

I hate leaving the converter/charger powered up all off-season to charge the house battery as I don't think it has adequate battery protection from overcharging. Plus it doesn't charge the chassis battery, though the Trik-L-Start you mention would solve that part of the problem. But then both batteries would be getting charged from that sub-standard charger. I do have a spare dual-bank trolling motor charger that I could wire in and it would separately trickle charge each battery based on their individual states. I just need to find a location to mount this so that I can easily plug it's power cord for off-season storage. These are premium chargers available from major marine and sports stores such as Bass Pro Shops.

Snowman, creative use of available materials on that repair!