To add to this.
Look at the UPS as a short term solution for power blips. brownouts, unstable power and brief outages.
Mainly to keep the printer going for these short duration events.
If your power is out for 5-10 minutes then it is probably going to be out for a lengthy amount of time and then you are more into the generator type of solution.
My UPS' have certainly saved many a print from a brief power interruption.
I run these on most of my printers. A little higher cost but heavy duty and seem to hold up to my big printers heating and running.
Remember, the UPS has to be able to handle the draw while the printer is heating even while on AC power or it will trip and shut down.
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