First time camping with the brand new jay feather x17z . As many of you know at your"demo" they give you the quick look ! We are not newbies to camping but, newbies to this camper . We were plugged in all weekend and, were plugged in a couple days prior for the refrigerator . When we were unhooking our power hitch was dead we had to reattach to the truck to unhook . Why is the battery dead already ??