To be sure I understand correctly: the refrig needs the 12 volt system to run off propane? And five full days on one battery is too long and the battery will go dead and the refrigerator will stop working? If I'm understanding this correctly I learned something new today. I've been camping for forty years but have only boondocked one night at a time and moved on the next day. I've never boondocked two or three days successively. Thank you! You saved me a refrigerator full of food spoiling and the mess it would have created.