charging of 2 camper batteries with truck alternator?

S Davis wrote:

So what about trucks with dual alternators, are you saying you can't use the secondary alternator to charge a couple batteries in a camper?

The discussion of 2 alternators (very unusual) is outside the scope of this topic, but I would assume that 2 alternators would be independent (except for ground), so the second alternator could charge a second battery bank at any rate.