feelin your pain
I lost the rest of my reply somehow, but I'll try again. I have attached page 14 of the schematic of my 2018 Outlaw. On the right you will see "interior fuse panel" - this is actually how the Converter, or Charger/Power supply is connected to the relay that is probably your issue. Labeled "disconnect" to the left of the fuse panel, you have to search for this solenoid relay, probably behind a fuse panel like mine was. This is what is stopping your 12V Converter from charging the batteries and running 12V stuff without shore power. I took mine out, tested it with a battery and found that it toggles; one touch of 12V to the smaller terminals closes the relay, another opens it. f you measure across the bigger terminals when it is closed, you will measure nothing. Measure from Ground to each side for 12VDC to determine if its open or closed.
Your batteries are probably ok, the 50A breakers are ok, this relay just opens when thing get too low in voltage and you have to "jump start" it.
Good Luck
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