Reading log entries made by a Private Framework for Battery widgets in Sonoma, it’s possible to track information about keyboards, mice, trackpads, UPS and internal batteries.
UPS
Using a combination of iohid and BatteryCenter, macOS checks attached UPS and wireless keyboards, mice and trackpads ever 2-5 seconds.
Please protect your Macs from mains voltage surges and sudden loss of power using a UPS. Here’s how to select and use one.
If your SSD suddenly loses power, what is there to prevent it from incurring serious errors as a result? Practical solutions.
Asymmetric Multiprocessing (AMP) can bring great economy in power and heat production. So why don’t we make better use of it on M1 Macs?
A UPS is essential for Macs without internal batteries, to ensure they can shut down in an orderly fashion when mains power is lost. Here’s how to choose one.
If you power your Mac from a UPS with a USB connection, sleep may not be all it’s supposed to be.
Why you should always protect backup storage with a UPS. Should you also rebuild its directories every month? And when to archive rather than back up.
Extensive listing of places to find key information such as your User UUID/GUID, Ethernet MAC, model identifier, and much more.
The cat broke my UPS. Here’s how I chose its replacement, and installed it despite the cat. Why are they sold by so few outlets, though?
The Eclectic Light Company 