cammper... try a dual battery hook up.
First thing I added to our camper for the times we spend boondocking at Nascar races.
Now that when ya get packed in real tight, sometimes you can even open your awning
Also a small generator comes in handy if ya wanna use the AC or watch TV or pop a bag of popcorn in the mikey
or when the wife wants to blow dry her hair,,
Ahhhhh nothing like roughing it in the great outdoors is there