ghost123uk wrote:I wonder what the time on v time off (thermostat) of a fridge like that is ?
70W = 5.83 amps @ 12 Volts and fridge was on for aprox 72 hours = 420 Ahso the fridge must only be "on" for perhaps ~20% of the time to be still running after 72 hours.
Where have you fitted them ?
I did some thermodynamics calcs on the 'other' thread to illustrate that the wattage of the fridge is a fairly irrelevant figure to its juice use. It's the heat that gets put into the system that counts e.g chilling down beers from room (van) temp and the u value of the insulation.
All a low wattage fridge does is cycle for longer. If I followed my usual camping strategy of filling 80% of the cool box with deep frozen cans and 2l frozen pop bottles I'd expect energy use to be approx zero for the first 3 days (maybe 5days this summer! Lol)
) Jim 