And here’s a good discussion on a UPS. I might note that I recently had a double power outage of about 15 seconds each during a thunderstorm. I was 90% done with a large 3D cut, but nothing happened except it got too dark to see what was going on. I was halfway to the flashlight when the power came back on. Also, we have almost daily “blips” of power where the UPS will only have time to beep once.
I’m now using an APC 1500 for my Shapeoko system. I moved the APC 1000 to a different computer.