it will run 4 days on a std group 91 battery [not that you'd want to
cycle a std battery down dead too many times], up to a week if you use a
true deep cycle 100 ah. it is possible to get an deep cycle battery
setup that fits under the driver's seat of 88 ah, that would give a
solid 4-5 days. it's a compressor fridge not absorption, so doesn't use
a heating element which draw a lot of power. this guy has one and loves
it: www.westyventures.com/rigs.html
you can find them for under 500 on ebay new.

thor

Paul Chubbuck wrote:
> Well, I hear you about the space.  But doesn't it rather rapidly exhaust a
> spare battery?  I can't understand how the draw could be acceptable for very
> long...like say, a week without running the vehicle.  Would it manage that
> long?  How much are they?