have been watching these posts and all I can add is that I have 1 x 50 ltr and 1x90ltr Evakool fridge freezers and I could not live without them now. I have just come back from 12 months on the road and the tings never missed a beat. I was very happy with them and believe me I am pretty hard on my gear when away for that long. Have tried three way fridges and such in the past without joy Only thing I would recomend is that you add 1 inch plastic angle on the bottom and corner pieces on the top as these area's cop the most punishment ... well from me anhow
And a little hint when traveling ... a couple off chinese take-away containers (water filled) frozen and placed in the bottom saves tucker... if for some reason ( ruff roads) your 12volt conection comes umpluged.
SwampDog