Alright, ... just got back from the trailer. I recently had a new converter installed for warranty purposes. Behind my fuse box is a GPC 55 max smart battery charger (55 amps)
2 old man, To answer your question, I guess the genset would be powering the converter... I have my shore plug plugged into the genset. I wasn't really thinking straight. If I was using an auxiliary charger, I could just unplug my shore plug and that would kill all power to the converter. But from what I have seen on the forum, even having power to the converter while charging the batteries from an auxiliary charger will do no harm.
I guess I just want to have my batteries back up as much as possible whenever possible.
The biggest draw will be the furnace over night as we have to keep our 16month old... and the wife warm during the night. During the day we have the honda 2000 to power the micro wave, and any other accesories.