Limping home when alternator belt fails.

Interesting thread since I'm going thru a similar situation presently. Alternator quit working for whatever reason and need to drive to my dealer 10-12 miles to get it looked at. Plan on running my genny which will keep the battery charged as I drive. On my coach, the converter will charge both house and chassis batteries when on shore power. Conversely, the alternator will charge all batteries as well while underway. Newmar uses a "BIRD" system = Bi-directional Isolator Relay Delay, which allows the multi-function charging I described. Suspect many other coaches use that or a similar system as well.