On Sun, 30 Oct 1994, Rick Gordon wrote:

> Well, now I'm starting to have doubts about my auxiliary battery charging
> system, or least the capability of the alternator to deliver enough current
> to handle both simultaneously.

Have you considered the guage and length of wire you're using between the 
alternator and the aux. battery?  I found that when I installed my own 
aux, it was important to have a short, fat, super heavy guage to net 
enough current/amerage at the other end.

James Cook