I've had this 2000 Tiffin Allegro for two years now. I have a fairly new set of batteries in it (2 years or less old) . The first year there were no problems whatsoever. In the last year or so I've noticed the batteries are draining when it is not being used. One of the things I've noticed in the last year is when I turn the 12v switch to off the sound that rings is noticeably weaker. Not sure if that has anything to do with it. I've checked to see if anything is on and I have found nothing and I cannot tell what is draining this new battery. I drove it quite a ways a week ago and back home. Parked it for a week and it wouldn't start. I put a tester on it when I started it with a jump and it says the alternator is working. So what I'm asking is this.... Is there something I'm not seeing that I should look at? Why is the battery going dead when everything works for a week and doesn't after a week being stored? What could be draining this battery? Thanks for any starting point you might give me because I have no answer at this point.