[whatsnewell]

The interesting thing here is I leave my merge switch in the 'OFF' position all the time and my chassis and house batteries charge. I've only used the merge switch once, or twice when my chassis batteries needed a boost back when I first got my Newell.....back then I was only using it every other month for trips and I had not yet learned I had 4 different switches that when turned off would completely isolate not only the house batteries, but the chassis batteries from any parasitic draws. Now I live in it full time and when dry camping I can isolate the chassis batteries completely so they barely discharge over a couple of weeks......my solar panels keep the house batteries topped off, and recharge them quickly each day when dry camping.