I once owned a 2006 motorhome(I would rather not say the brand) with a Inteli-Power 9100 60amp Converter/Charger the charger kept over charging the batteries on the rig both the house and chassis batteries. I found out with this charger, it just poured the coals to them, the batteries, constantly. Then I found out about a thing called a charge wizard, once I connected it to the system, it never over charged again, and water evaporation literally stopped. The charge wizard just plugged into the Inteli-Power 9100 60amp Converter/charger.