I bought a JoyTutus 26qt portable fridge to increase the freezing capacity of my boat. It cools down fairly quickly when empty (roughly as listed) and can reach freezing temperature (5 degrees F or less). When operating as a freezer, some condensation will form on the outer walls of the freezer, so the insulation may be better. The fit and finish is okay for a cheaper cooler, but the lid on my unit seems to be slightly bent and the gasket around the lid has a band about 2 inches wide on the front that is iced over. no contact in this area. It's nice that it fits in a half-gallon or gallon standing American milk can. When the cooler was in a location where it was 80 degrees Fahrenheit outside, it seemed difficult to get below -4 Fahrenheit even on the highest setting. The thermometer in the center of the unit reads 57 degrees higher than what is stated on the unit, but that is to be expected in a cold plate [no forced air] refrigerator (the non-contact thermometer showed the same temperature as the display shows when it is pointing towards the cooling plate). plate along the inside wall next to the compressor where I believe the inside thermometer is located). Once the cooler stabilized at the indicated temperature of -1°F (thermometer reading 5°F) with a quart jug of frozen water in the cooler, I unplugged the unit to see how long it would stay cold. After 1 hour I turned the unit on for a few seconds and it showed the internal temp is 24F. Another hour later it was at 30F. 45 minutes later it was at 34F. Then I opened the fridge and the thermometer read 40F. Not bad, but again this suggests that the insulation could be improved. The device is quiet in operation. It sits right on the dock in my boat and I can't hear it working when docked. With any ambient noise, I have to put my ear to the device to hear if it's working. I got an E1 (low input voltage) error when running the device on a 700Ah battery, but this was resolved by switching from the 'high' to 'medium' battery protection setting. Using a KillAWatt meter with an AC adapter, I found that the unit draws between 35-42 watts on the Eco setting and 37-57 watts on the Max setting with the compressor running. Over the course of 24 hours and 30 minutes, including initial refrigeration and other testing, I found the unit was drawing 740W of power (just under 60A at 12.5VDC) when set to -2F as a freezer, but this number will likely be lower if connected directly to a DC source. It could keep ice for frozen drinks as well as half a gallon of ice cream at serving temperature for over a week. It would be nice if the lid seal was better and the insulation could be a bit better, but overall it's a decent option at 1/4-1/3 the price of bigger name devices. Update: I originally gave it a 3 run rating, but given the price decided it might have been a little stiff due to minor issues with the temple/lid seal and the less than desirable cold holding performance when turned off. Changed to 4 stars. Added an image showing ice cream on the rim where the seal isn't perfect (and a half-gallon milk jug standing in it). After a longer test with KillAWatt (72 hours) at the highest level, I found the power consumption to be slightly lower: 1890 watts over 72.4 hours is 26.1 watts/hour. At 12.5 VDC (nominally 12V at 80% charge) this would be 2.09 amps/hour or 50.2 amps/day. This was still measured with an AC power supply, so the direct DC consumption is probably even lower.
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