Picking a UPS (Battery Backup) for Your Mac or PC
It can provide backup power for 4.5 minutes to a computer system drawing 1,280 VA. That may not sound like much, but 4.5 minutes is long enough for you to save your data, close files, and perform a shutdown in an emergency. If you want a longer runtime, pick a UPS with better efficiency, a longer-lasting battery, higher voltage …
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