this post was submitted on 27 Oct 2026
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Sorry to be Debbie downer but if thats a 12v car fridge it almost certainly uses a Peltier cooler which is extremely inefficient. Theyre only designed for day trips, its going to use a lot of electricity for that task.
The label in the top left seems to indicate a refrigerant
Looks like 10g of r600a, which is isobutane. Neat! I knew some used propane, but not isobutane.
Obligatory Technology Connections video.
Try optimism for a change it will rock your world and that of those around you in such a good way! It's a compressor!
Optimism doesnt pay my bills :) excellent they make compact, 12v refrigerant based coolers now. Learned something new!
Most 12v car fridges use a proper compressor these days. It's still likely very inefficient as compared to a home fridge of course, but due to lack of insulation and inefficiencies of a small refrigerant system.