This was an old project I made a few years back, just never put it on my geeky page.   Modified it today, could never find a good reliable high current plug for it and my car.  I had a "high current" heavy duty cigarette adapter plug on the cooler but it melted lol.     Finally decided just to order some of these PowerCon plugs, really nice plugs actually. I started using them on many other projects after testing them with 20A DC for extended times..        Anyway I bought this Yeti knock off cooler from tractor supply.  Really nice cooler by its self, kept ice in it for like 4 days in the summer..    Then while surfing the great net, I found this Peltier Thermoelectric cooler, it was much larger than the low wattage ones found in commercial coolers...   I impulse bought this thing, with the mindset, if the the cooler I have can keep ice from melting after 4 hot days I can probably make a decent iceless coo...