I purchased the 55 qt lifetime ice chest on Sunday afternoon about 3pm i put a cold 24pk of beverages in it with 20lbs of ice in it about 4:30pm. I drove home and set it by my pool and left there till today to see how long it would really keep ice and the beverages cold. It only lasted 72hrs the ice melted around the 48hr mark and the coldness ended at 72hrs. So in my opinion this ice chest does not hold up to the claim of 7 days cold. maybe in some northern state but not in South Texas.