Originally Posted by Becauseican
Thanks to all. I will move one of the cables to the other battery as suggested. the only load I had on the inverter was the regular rv frig nothing else. I have heard that the "Harris" battery's that Thor puts in its units are not too good. So when they go bad I will replace them with some better quality battery's. I don't have enough room to put golf cart battery's in. I have an RS26 class C and the battery's are under my entry way.
Thanks again to all
Phil, when you say "regular RV fridge", do you mean the kind that can run on both propane and 110-Volt electricity? If so, that's likely your biggest problem.
As an example, I just looked up the power requirement of a typical 6 cubic foot Dometic absorption fridge when running on 110-Volt electricity and it's listed in specs at 440 watts. That's a lot, and many times that of a typical residential refrigerator which only runs on a compressor powered by electricity.
Typical RV refrigerators use absorption cooling technology that is very inefficient when running on electricity compared to residential compressor technology.
If you do have a normal RV fridge, just run it on gas/propane and save your batteries and inverter for electric loads that require them.