Mike, nice write-up in your link above on how you used your idling tow vehicle and it's alternator to do very silent RV battery charging in noise sensitive camping environments.
I've been kindof advocating to use this approach in these forums. My 130 amp Ford alternator has dumped as much as 70 amps into our batteries at engine idle - which is very quiet. It works very well as a beginning phase for up to an hour before I use our generator to finish the charging through our stock 13.8 volt RV converter.
It all seems to play very well together.
