I guess ill join the group on this one, I have noticed my house, coach batteries are not charging while I'm driving. I too never have been anywhere where I don't plug into shore power. my RV is always plugged in at home. and while the Onan generator is running it charges the coach batteries. I have a 2017 Thor Windsport 34j. I assume its down to a bad BIM 160 isolator, or its wired incorrectly or both. I am gonna change it out and hope it now charges correctly. seems there has been a lot of these same issues now that ive joined the Thor forum
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