Leaving the fifth wheel plugged in

Mine is at my house and plugged in. During the season I keep a/c set to 90, refer on with groceries in it and I am constantly in it tinkering, snoozing, boozing or what ever else I may find to do in it.

Mine goes to the farm in October and is set up as hunting camp, where it also stays plugged in and heated to 40* with refer and groceries till the 1st of the year.

It then comes home and is completely winterized and shut down...yet still plugged in.