Bryan,
I used a DieHard P2. Buy it on sale search for coupons
its a Sears Battery made by Odessey. Sears has great 
warranty. You should have an onboard ac charger or one 
at home to keep it topped off before heading out to camp. 
See this link. See the last page for my install. 
 http://www.thesamba.com/vw/forum/viewtopic.php?t=508148&start=40&postdays=0&postorder=asc&highlight=diehard

Bill M

On Mar 18, 2013, at 9:12 AM, Bryan Feddish <uprightbassghost@HOTMAIL.COM> wrote:

> I know this topic has been beaten to death as much as the silver socket thingy but I’m finding lots of conflicting information about this.  Is there a reasonably priced deep cycle that will fit easily, or with minor mods, under the drivers seat?  I see this one http://www.van-cafe.com/home/van/page_1138_125/auxiliary_house_battery.html but it AH’s are about half of what I’d like. 
> 
> You can p-mail me if you want.
> 
> Thanks,
> Bryan