UPS Backup Battery Power error message on iMac
Hi
For the past 2 days, I've gotten an error message pop-up saying "Warning! Your computer is now running on UPS backup battery power. Save your documents and shut down soon." (see attached screenshot)
I do not have a UPS device installed and the iMac is connected directly to the power outlet at all time. I do not know why I am getting this error message. Both the times that it flashed, I clicked "Ok" and carried on. The computer did not shut down.
I'm running a 2017 21.5-inch 4K iMac with macOS Catalina 10.15.2 installed.
Is this some sort of early-warning sign that the iMac is going to stop working soon?
D
iMac 21.5" 4K, macOS 10.15