Here's that link Sam. Lots of good stuff on the site. I do think several
people misunderstood what I was saying though. I didn't mean to imply that
if one battery was bad it would absolutely take out the second. Batteries do
tend to want to equalize themselves, and a bad battery can deteriorate a
good one. Relays are also not true battery isolators, which is another point
I wanted to make. A true battery isolator will shut down a battery when it
reaches a certain minimum voltage. This by itself can save a battery and $$.
Having a good metering system, I think is key in any case.

Anyway, check out the link. I think you'll find it informative.

Troy

http://westfalia.org/eve/forums/a/tpc/f/87160555/m/1096022211

> Troy,
>
> I'll look for it.
>
> But if the two batteries are disconnected when the alternator goes off,
> then I can't see how the bad one "sucks the life out" of the good one.
> But I  may be missing something, as I said.
>
> I have megabytes of saved threads on the 2nd battery issue, but this is
> really something slightly different.  I've never seen this discussed as a
> reason to not have a relay set up though.  I may even have what you are
> going to send, but haven't even gone back through all my saved stuff on
> batteries.
>
> Sam
>
> --
> Sam Walters
>
> Baltimore, MD
>
>
>