coolers that plug into cigarette lighter

[DisneyDadof2]

I bought one from Wal-Mart and returned it. It just didnt cool down. I plugged in at home to test it overnight and it didnt cool down at all.

 

[llqool]

we have an Igloo thermoelectric cooler (one of the almost mini-fridge size) and my sister had one that was a Coleman. Hers just quit running one day. Ours has worked fine for three years. We use it for long trips. It keeps milk, yogurt, cheese, etc.etc as cold as a fridge. You must remember to pre-cool it though (leave it plugged in for about 4 hrs to cool down before putting stuff in it). It is rather noisy, but it's a "white" noise that is OK in a hotel room.

we can't leave ours plugged in w/the engine off -- it will not keep running. That's a function of our SUV, though -- when the key is not in the ignition, it will not charge cell phones, etc etc

 

[Dizneydaz]

I bought one at Target at the after-Christmas sale ($15) but I haven't used it yet. It keeps things either cooler, or warmer. After I read the instructions I meant to return it but never got around to it. The instructions say it keeps things 15-20 degrees cooler, you need to let it cool down for an hour or more before using, and, and the big one, never leave it in your vehicle plugged-in. So, basically, as far as I'm concerned, it's useless.