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My 31W class C does not charge the chassis battery when plugged in ( confirmed with Thor that is how it is designed). Coach yes but chassis no.
My solution is a 0.75 amp battery minder plugged in inside the coach with the output plugged into the cigarette lighter on the dash. Works great to keep the chassis battery charged since that outlet is always live. Without the minder it takes a month or two to run down the chassis battery.
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Pete and Carolynn Foss from Oxford, MI
2018 Four Winds 31W
1999 Aero Cub F-21 trailer
1977 Tioga 24 foot RV
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