I bought this hoping for the best, expecting meh. I charged the cooler (over night 1-10 pound bag of ice. I got 5 days from 30 pounds of ice and if I had the ability to drain it daily I suspect I would have gotten a solid 6 days out of it. That was my 1st
use. The great thing about the cooler is even after the ice is gone it still keeps everything cool for hours. So happy with the 55 quart that I bought. The 55 quart that I bought was the 2nd design that had the gasket in the lid.