Way too much money for a clunky solution. Here is a link to the one I
have used on many Vanagon aux battery installations.
Better specs and only $16 plus shipping.

http://www.alliedelec.com/Cart/ProductDetail.asp?SKU=5763007

100 amp continuous, 400 amp surge

Click on the bottom catalog page link to see it and tons more including
the lesser ones sold for more $$ at FLAPS , RV, and boat stores.

Mark

Jim Arnott wrote:

> NAPA ST-85 $64.52 list (ouch!).  My cost about $45. 12v 80 amp. Might
> also try any RV supply.  Not an uncommon item.
>
> On Friday, July 8, 2005, at 09:33 PM, Jake de Villiers wrote:
>
>> Good point, Jim. That's why I bought two while I was there!   I like
>> what
>> you are saying about the heavy duty relay, though. What kind of store
>> carries them?
>
>