UPS does not appear in Energy Saver preferences

Issue or symptom

An uninterruptible power supply (UPS) connected to your computer via USB may not appear in Energy Saver preferences until it is reset.

Solution

Follow these steps to reset the connection between the UPS and the computer:

1. Shut down the computer that the UPS is connected to.
2. Turn off the UPS and disconnect it from the AC outlet.
3. Leave the UPS disconnected and turned off for 2 or 3 minutes.
4. Connect the UPS to the AC outlet and computer again.
5. Start the computer up.
6. Verify that the UPS is recognized by Energy Saver preferences in System Preferences.