Just finished installing aux battery in my '90 Westy, using regular group 41 and the
existing relay system. Everything is up and running fine.
Recent discussions about relays, isolators, separators, over or under-charging, etc.,
makes me ask this question.:
    Does the voltage regulator sense when the main battery is fully charged and slow
down the rate or something, and if so, what happens at the aux battery if it was still
at a lower state of charge?
Hope this makes sense, and thanks.
Jerry in Arizona