Power Center/Converter Recommendations

Yeah, I think if I recall what I said correctly, that technician's statement was simply a verification that the unit was a three stage, and that it would drop into trickle, therefore allowing me to simply keep it plugged in during storage, as opposed to removing batteries every winter. But I may have been unclear on that too.

Since you bring it up, what amperage breaker, and gauge wire should be used between truck fuse block/connection center, and the camper for the charging circuit?