A refrigerator/freezer doesn't draw power like that continuously, it's intermittent. I think your math is off a bit. If I estimated correctly, you could get about 36 hours of usage out of those batteries before they'd be at 50% capacity.

It gets more complicated when you have the panels running at the same time you have the batteries being used. You'd be adding less than you take out obviously but you'd still be adding some.

I could be wrong about the figures but I think you're low on how long those batteries would power the fridge.

You also have to figure in how much power you're losing with the inverter. Depending on how efficient it is, you could be giving up as much as 50% converting the 12v source to 120v.

Top of my head guess, I think you could get approx. 18-24 hours of use from those batteries at those power levels.

Somebody please double check the math...!!!