On 4/8/06, Jon Brown <jbrown510@gmail.com> wrote:
>
> Does anyone have simple solution to have the house battery cut out when
> it get drawn down 50% or so?

Kind of a tough row to hoe there. The difference in voltage between 100%
charge and 20% charge is only about one volt under the best of
circumstances. Throw in variations due to temperature and you have a hard
time nailing down that halfway point without venturing into the realm of
electronics.. Your best bet is to just buy one of those "battery saver" type
products:
<
http://www.compactappliance.com/xq/JSP.detailmain/itemID.2793/itemType.PRODUCT/iProductID.2793/qx/shopping/product/product.htm
>

Troll around ebay, I bet you could find something nice n' cheap.
--
John Bange
'90 Vanagon - "Geldsauger"