g36,
Even using your figures, the fridge will run for 6.3 hours consistently, but it won't. I'll have it very cold using shore power when we leave the slip, and even if it runs 1/2 hr of every whole hr,,,that's 12.6 hours staying cold.
As I have said before, we'll only be out perhaps 10 hrs at the very most. We
never have and
never will stay out a night on the hook. We live 2 miles from our boat, and if we ever did stay a night on the boat, it would be at our slip, using shore power.
If I find that I can't get 10 hrs, I'll buy another Maxx 29 battery from Wally World. It may not be from the same lot, but it will be the same battery, and I know what the deal is there.
I'm doing the best I can, with the funds I have, and with the help from all of those, including you, out there, I have a good chance I'll be enjoying my boat to it's fullest.
Thanks,
Larry