Update on this: We replaced the chassis battery in January of this year as I was certain that we still had the original battery in the rig. That *seemed* to do the trip as we just returned from an amazing 6 week tour of Florida and the Southeast. During this trip the charging and batteries worked flawlessly across the board. Everything charging when it should ...... until the very last leg of the trip home!! :-) Literally the last 3 hours after stopping for fuel.
I have a theory, our rig just hates coming home!
It was no big deal since we are now plugged in, but I do rely on the the alternator to charge the batteries as we travel, so I am hopeful it was just a weird quirk. I will test it a bit this weekend.
I thought for sure the new chassis battery fixed the issue.
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