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
Since you never camp without shore power, and the on-board power converters are notorious for cooking batteries, I would buy a cheap marine battery and use that. We keep our trailer on a seasonal site and only remove it once a year when we go camping without hookups. I have two Trojan deep cycle batteries that I use when boondocking but I disconnect them and put a cheap marine battery in when back on shore power. The two deep cycle batteries are 10 years old now and still run the trailer for two day with minimum power usage when boondocking. We take a genny to charge them every 3rd day.
