4 to 5 hours on the battery won't kill it I don't think. Also running on propane is done all the time, so I think your pretty safe.
Model X19H Expandable
GMC Sierra Pick up
Been a camper since I was a kid, and that was a long time ago :)
From pup tents with no floors, to tents with floors and flies, to a pop up, to the expandable.