The reason for my question was that i bought a Kings 60L fridge.
It turned out to be faulty and did not cool on 12V. It did however flatten my starter battery after 12 hours. (Battery is new)
4WD supacenter were great and replaced the fridge with no hesitation or cost to myself. The Fridge was only 3 days old & worked perfectly on 240V.
I will get the replacement fridge today and run it tonight to see how it goes.
Thanks