Inverter to power refrigerator during power outage
Posted: Thu Jan 03, 2019 5:28 am
After a bad storm, we lost power and it wasn't predicted to come back on for 24 hours. I thought this would be a good opportunity to use my 2013 Leaf as a giant battery pack. I bought a 750W inverter https://mechanicguides.com/best-power-inverter/ , which should have been big enough to power my 5.1A fridge, but it wasn't able to power it. It did come on, the lights worked, the temperature readings worked, and if i turned off the cooling the fans would run. But not the compressor. I returned the 750W and bought the largest they had which was 1000W (2000W for 0.1 seconds) and it still wasn't able to run the refrigerator. Both were able to power a small 1A refrigerator. Luckily, the power came back on after 18ish hours, but I hope to learn what the correct solution is for next time. Any ideas? The 750W inverter never reported over current. The 1000W doesn't have any way to report that. I assume there is a large inrush when starting the motor, but not sure how I can easily measure it to know what size inverter I would need. I also thought about it later and the fridge must be sensing and not trying to turn on the compressor for some reason, since the rest of it worked fine.