Originally Posted by welder34
I assume you have checked to be sure your charger is charging and no draws.
Does it currently have 6 volt of 12 volt?
A lot of people, me included, use 6 volt golf cart batteries (wired for 12 volt) for the coach side. They can be run low often with little harm. Not sure if any one particular brand is better than any other. I would find some locally so that if you do have any issues its easier to talk to someone.