I reviewed the VECYS CR18 Car refrigerator.
This is an 18L fridge/freezer (it can get down to -14C / 6.8F) that runs on 12-24 volts DC (although it ships with an AC adapter that allows you to use it off of mains power).
At refrigeration temperatures (0c/32f) it takes 190 watt hours to maintain temperature for 24 hours.
At freezing temperatures(-20c on the control panel, -14c inside), it takes 520 watt hours to maintain temperature for 24 hours.
It takes almost 24 hours to fully freeze a 1L / 1kg / 2lb water gel pack.
You may also be interested in the (much larger, 60 Liter) VECY’s CR60.
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