Originally Posted by Joerossi
I was not aware the converter/charger also charged the engine battery. Shouldn't it be isolated to prevent it from being drawn down if somethin was left on in the coach and you were not plugged into to shore power?
Well, to be honest (rare I know) I am not a motor home guy. However, the Herkbrary contains a lot of motor home material in case one day I become one.
From these two documents and the attached wiring diagram it appears to me that as long as the voltage on the coach line is 12.7 volts or higher the battery control center will tie the chassis battery and the coach batteries together. This will seems to allow the on-board generator and/or the engine alternator to charge all on board batteries.
If that is indeed the case, then applying power to the converter should boost the system volts to above 12.7 volts. This should close the buss tie relay and allow charging just as if the on-board generator was running and supplying the current.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW