The person at batteries plus doesm't have his math right, 3000W / 12v = 250A not 27.5A to start with.
Thanks! Well I guess I would get 2 hours of full out run time then on a single battery. Well maybe I need to get one of these;
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=93519to measure how much energy the fridge actually uses. It really doesn't run that much, but maybe I just don't know. I am thinking that I should get some pretty good run time since the refridge will be cycling on and off as needed.
Dave