This reviewer received promo considerations or sweepstakes entry for writing a review.
I had to return this cooler due to the fact that it did not fit my needs, which mainly has to do with actual portability. But while I had it, I did test in some scenarios. In a 72° F house, my power bank of 720 Wh/600 W AC output lasted about 36 hours with an empty cooler with a set temp of 37° F left side on MAX mode, plugged in with the 12 V DC cable. I then put 16 cans on the left and 8 cans on the right, all about 80° F, my power bank lasted about 12 hours. With the cooled cans, I then put the cooler inside my car, with an average day time temp of 105° F. My power bank did not last even 8 hours. My next test was to connect a 220W bifacial solar panel which I just laid flat since I didn't want to bother re-positioning it. My power bank was receiving input as high as 140 W. My power bank did not die as there was sufficient solar input to top it up. I also tested a small electric kettle that drew 560 W. I noticed that my power bank died once at the beginning, which also killed the power to the cooler. I turned the bank power on, the cooler, and the electric kettle. The water was at full boil at 12 mins and kept it on for 30 mins. I could see in my power bank that the highest output was at about 620 W when both cooler and kettle was one, 560 W when the cooler is off, and 60 W when only the cooler is on. I then put the cooler outside under shade with an average temp of 90° F, observing the output draw from 50 W to 72 W.
I think that this cooler would be good to those that will keep it at a place with less than 80° F as the compressor was working overtime to keep the cooler at 37° F Left side. Also, this cooler already weighs in at 37 lbs so with all the cans I put in, it was a bit heavy and with no wheels, it was hard to carry though I appreciated the metal holder as it feels sturdy and might last a while. Also, this cooler is not a true dual-zoned fridge. The right side depends on the temperature you set on the left side if you put in the divider. Theres a variance of 12° - 20° between the two sides. If you take out the divider, it becomes a single zone cooler.
This review is from Costway - 12 Volt Car Refrigerator 53QT Portable Car Fridge with -4℉~68℉ for RVs Adjustable Range - Black
