David Bogle wrote:
> Dear Darrell,
>
> Thanks for the input.  This sounds much easier than running a new wire
> from starter battery to aux  and installing a new relay, etcetera.
>
> Anyway, how often is the draw going to approach 30 amps. For some, more
> often than others, but for me, a few of times a year probably.  I have
> propane for the fridge.
>

I had a 30 amp. fuse in the wire i ran (#10, i
believe...thick stuff) between my main and Aux.
batteries.  Anytime i went camping and used much aux
battery power, the fuse would blow when i started the
vehicle.  I now have a 40 amp fuse, and it has never
blown.  i also installed a 40 amp relay for the aux
battery right next to the camper relay, which i still
use for the fridge.
steve