Bosch make a nice small relay, rated at 70 amps. If interested
I can look up the part number....

            Eric                   86-VW4x4
            vw4x4@fyi.net          72-240z
            Pittsburgh, PA USA     1936-Chrysler

On Thu, 4 Nov 1999, Bob Kelly wrote:

> I have installed many 2 batt syst. in my own and customer vans and cars.
> I use a constant on solenoid that is used to run the light bar and other
> elect. equip. on our Police cars. it is also used in bus's. Napa part #
> ST85. It looks like a Ford starter sol. but is all steel and made to be
> on all the time. (not just to start a car as in a standard starter sol.)
> They are rated over a 100 amps. I have had this setup in my Blazer for
> over 2 years and run 2 900 CCA batt. and a 100 AMP alt. And in my Westy
> with 2 825 CCA batt. behind the seats and a 3rd 825 Gel cell under the
> rear seat, with a 90 AMP alt. for over a year with no problem. I always
> up grade the batt cables and wiring.    Bob K.  RWK Enterprises
> Placerville Ca. VW Mods and Conv.
>