I have a 2004 Bavaria 32 Cruiser, it appears that I am getting a draw on only one battery. Both are connected, not to each other. When one draws down to a point that I cannot start the engine, I have to switch cable connections to the other battery. I do nto like to draw just one battery, would prefer to draw on both. I am thinking that the house battery is only drawing the lights and potentially radios. The other has the starter and the frig. Should I conect the batteries to each other or possibly move the frig to the second battery? Has anyone installed a stand alone starter battery. I think if I go this route, I will not have any engine starting problems and could potentially double my house battery capabilities. Any suggestions to what I have going on here?