Likely has a converter that charges house batteries, but not chassis battery.
You can check battery voltage with s meter when not connected to shore power, then plug in shore power, a notable increase of about 1 volt should be experienced if charging.
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Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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