I'm picking up a Viking pop-up truck camper in the next couple of days. Need to get it ready for a trip in July to the mountains where I will not have shore power to plug into. I know a generator will...
With that vintage TC it could very well have a convection furnace which would require no electric power . My 78 Coachman pop up trailer had one .It also had a converter to switch to 12v when on shore power , but no charger or battery . Tell us more when you get it .