Related to this thread, I have an isolator on my '82 Adventurewagen. It used to
work well, but I noticed that in the last several years, the voltage drop across
the alternator terminal and either of the charging terminals is such that my
batteries aren't always getting enough voltage to charge properly.

Couple with this, I never did use that 4th, smaller terminal on the isolator. Is
that the alternator sensing terminal, and if so, what should it be wired to?

Currently I'm bypassing the isolator so my battery always gets a good charge.

...Dan

Beckett Cantrell wrote:

> Harald, please forgive me if I seemed to insinuate that batt. isolators were
> no good. Some work wonderfully, the key being the remote sensing terminal you
> mentioned. I aimed the previous posts at relay switched dual batt. charging
> systems as they are much more common and inexpensive than the isolator
> methoud.
> Good luck,
> Beckett