In my recently purchased 2002 Winnebago Adventurer, I see that they no longer offer the option to charge the house batteries while driving down the road. Apparently,the house batteries can only be charged from shore power or running the generator. There is a "battery boost " switch which allows the house batteries to start the engine. My question is: if I leave this switch in the battery boost position while I'm driving, will the alternator charge the engine batteries plus the two house batteries???