RV Battery
I have a 5 year old Interstate battery that needs replacing on my 5er. I suspect that it has been failing for a while. Plugged to 120 V it showed 4 circles. Removed the 120 V power and the RV battery ...
Forum Discussion
Look on Amazon and search for 12 volt deep cycle battery. There are several available. Also check with NAPA. This type of battery should be better than the Interstate marine battery you have.
