I am having a similar problem (but mine is a 2017 Thor Gemini 23TR) ...not charging up house batteries while on shore or generator power --only while driving. I can't see any flag on my 50 amp (due to its position behind house batteries -see picture). Anyway, I have made a service appointment (several weeks off) so I'm wondering if I can maintain the 2 batteries until then using my trickle charger? I have attached a picture of my house battery set-up and wondered if I could clamp onto existing posts while still wired together -and if so which posts? Or I'm I better to disconnect and trickle charge each battery one at a time? Nancy
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