WOW! Thanks for such detailed responses. Thank you!
Particularly nice to have such and extended one from another that has a unit similar to mine, Thank you DrewE!
Another basic question- about how long should my house battery last?
Duracell 24DC RV MARINE. I think it's about 4 years old. SO maybe thats just to be expected at this point.
I guess I'll start with checking the cells for water just in case, and then maybe take the battery out and have it tested. Then look at other components...
Also, any recommendations on a good battery that doesn't break the bank? The above okay?