Batteries not holding charge ???
I have 2 year old deep cycle Interstate batteries, usually they hold a charge for about 2 months but recently its much shorter than before. Is there a way to check the RV charging system? When I plug ...
Forum Discussion
My last set of Costco (interstate) batteries lasted 8 years. Try a hard charge for 3 hours and cook em off at 15-16v. May help de-sulfate them. Put a kill switch in for storage and put a charge on them every few months. The electronics and propane detectors will draw them down to a low level which causes your problem. Those are very good batteries for what they are. And the price is right. Here is a chart that gives you an idea of charge state. Keep in mind you don’t want to go below 50% of a charge on a flooded battery. Good luck.....
