I have one of the small ones. F40C4TMP 12 Volt Refrigerator 13 Quart(12L) Portable Freezer (-4℉~68℉) with APP Control Car Fridge 12V/24V DC and 110-220V AC Compressor Cooler For Camping, Truck, Road Trip, Room and Outdoor https://a.co/d/c4A6vL1
I have used it, mainly for holding drinks, while traveling. I also find it handy, for stops at store, keeps ice cream or meats cold, until I get back, to camper.
I'm thinking of getting larger one, to replace extra one, I carry in camper.