How long can equipment on a UPS keep running after the power goes out?
That depends on how large your UPS system is and the type of equipment it is protecting. Some with extended battery packs and/or hot-swappable batteries can run virtually unlimited times. However, if you want extended run times, you may want to look at a backup generator instead of or in addition to a UPS. Usually, a UPS is designed to run from a few minutes to about fifteen minutes with its internal battery system.
