New batteries

[KennyM]

Yeah that's good to have someone look at it. My concern is not the health of the charge controller, just it's inadequacy for charging standard RV batteries. It's ironic because it's an industry wide problem, but all you can do is change it out to a better one...if that's the problem

I have had to change out a few converters, anything electronic can go bad at any moment, the nature of the beast. 10 years old is a fairly good lifespan.