"Does anyone know how many amps are drawn by an inverter to convert to AC for a residential fridge. Can anyone tell me how to figure it out.
Look for the Manufacturers ID plate attached somewhere to your refrigerator. It will state the load in amps @ 120 volts. Convert that to watts. Watts = Volts X Amps. For example, if your refrigerator draws 6 amps @ 120 volts, the watts equal 6 X 120 = 720 watts actual load. Now add the power draw of your inverter (in addition to the energy required to run the frig) to convert from 12 to 120 volts. If you have a 1000 watt inverter, figure about 5%. So .05 X 1000 = 50 watts. Now add that to the actual load. 720 + 50 = 770 watts. Now convert to battery amps @ 12 volts. 770 / 12 = 64 amps. That's a lot, but it is not continuous. It's based on the duty cycle of your refrigerator.
64 amps @ 12 volts far exceeds what you could reasonably/reliably expect to run through a single pin on a standard 7 pin truck/trailer connector. Your residential refrigerator may draw less than 6 amps (@ 120 volts), but, if it's a high end model with all the bells and whistles, it could be considerably more.
Chum lee
