Issue:
How to configure native shutdown of Mac OS X
Product Line/s:
Smart-UPS
Back-UPS
Environment:
Mac OS X attached to UPS via USB cable
NOTE: According to Apple, Energy Saver options are unavailable for UPS on portable devices, e.g., MacBook, MacBook Pro, and MacBook Air. See Apple discussion thread 8398176.
Cause:
Installation information
Solution:
Please review the Apple support document "Set when your Mac shuts down while using a UPS" at this link
https://support.apple.com/en-gb/guide/mac-help/mchlp2987/mac