Any chance you just need to leave it plugged in for a few days to fully charge everything? Also, if you're plugged in, can you check the voltage at the battery(ies) to see if you're actually charging? When you say "1 volt coming in from the aux power system," do you mean the converter? We may be able to help ID your problem but need more info/symptoms.
2015 XLR Hyperlite 30HFS5 (mods being performed regularly)
2009 Salem LA 292fkds (gone)
Nights- ('12)23 ('13)23 ('14)15 ('15)31 ('16)25
2014 Harley Davidson FLHX (XLR cargo)
2014 VW Jetta TDI (diesel sipper, camping support vehicle)
2011 Ram 2500 CC 4X4 CTD, B&W Companion (toy hauler hauler)