Sorry to hear you are having battery problem. Have you checked the level in the batteries if you have a dry cell that could cause the problem. If that is okay you need to put a multi-meter in line with the batteries and see what the draw is. If it is high there will have to be something drawing the power. Good luck with the problem
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee,with Hemi, hooked up with a Blue Ox Aventa LX, and Brake Buddy.