Do you speak from experience, Kit_e_kat9?
No, but there is always a first time for everything ... and since I have no idea what set up each person has car and camper wise ... I always give the most effective advice for the non-thinkers of our population ... that way they can never say "that darn kat ... she's a dill and so was I for listening to her" when they get a flat battery beyond the Stump.
Besides, that's his job. Mine's just to make sure he's done it.
Besides, it's a PITA to walk
over the hitch around all the time if you need something from the drivers side ... eg: turning the gas on and off / accessing the other side compartments ... so we disconnect and use the vehicle as a "privacy" wall.
We don't have a dual battery as yet, so hence the precautions. Sadly, we only do long / weekends as well.
Kit_e