Thor Forums

[Chance]

Originally Posted by oldbird

17 amps to run a residential refrig?

I would assume he meant 17 Amps at 12 Volts, so it only works out to about 200 watts of power going to inverter. The inverter output would likely be around 80 to 90 % of that, so around 160 to 180 watts going to fridge at 120 Volts.


Still, that's a lot of power for two standard-size batteries. If the fridge ran continuously (and I doubt it would), 17 Amps overnight would require close to 200 Amp-hours, and limiting batteries to 50% depth of discharge, it would take 4 batteries just to make it through the night.

If 17 Amps is correct, then it would go through 2 average-size (+/- 100 A-h at 12 Volt) batteries in a hurry unless the fridge's cycle duty is very low.