>>Has anyone else done this?  Should you use a deep discharge marine type
>>battery for the aux.?  Also, is there a way to figure the amount of time the
>>power will last before aux. battery drains?  Is it worth it, or will lights
>>and radio drain the battery in an hour or so anyway?
>
>I set up twin batteries in the notcback I used to have, to power a 
>monster stereo.  Worked great!
>
>I am thinking about doing something like this in my 56, but with a twist.
>The bus is 6V, and I wanna run a 12V deep cycle for the fridge and
>any other stuff I decide to put in.  What would I have to do to get the
>6V to charge the deep cycle?
>
Thom-
 I guess you don't like the two 6volt batteries in series. 
about the 1 12voly deep cycle-

 You need a voltage doubler circuit (not cheap) or a DC to DC converter(not 
cheap either.)  Or maybe two generators!  You could use two 6-volt or one of 
each- 6 and 12.  I don't think you'll like either of these.  can you get 
deep cycle 6 volt batteries?
  
 
  Chris Bridge
  
  Currently building an engine for a ''71 Westy
  E-mail cbridge@vt.edu