An uninterruptible power supply, or UPS, provides essential protection from power surges, spikes, brownouts, and outages. But if you’re not at your Mac when the power goes out, the UPS may run out of battery before you (or the power) return. Happily, if you connect your Mac to your UPS with a USB cable, macOS can detect the outage and shut your Mac down safely, regardless of what else is happen... Read more