Forum Discussion
justme
Feb 01, 2018Explorer
ScottG wrote:justme wrote:2oldman wrote:That is how many watts are used in one hourjustme wrote:Watt-hours?
That becomes 533 to 667 watts/hr.
I don't think thats quite right.
You cannot use the momentary surge current of when the compressor starts to make the power usage argument over a long period of time. Modern fridges uses a fraction of that power when just running and they only run about 50% of the time.
This is why so many modern rv's can get away with using a resi fridge and don't require anything more than the standard charge line from the TV.
Just tested our own 2 y/o full size Samsung resi fridge in our home and it runs at 169 watts - easily sustained by a TV charge line.
You are correct however it depends if the electric refrigerator you have has a 1/4hp, 1/2 or 1 hp compressor motor. One can determine if what fits their needs by using the mathematics and knowledge of their particular refrigerator. Remember there are 746 watts per hp in a perfect world. Then comes the charge, capability and condition of the batteries.
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