Best Uninterruptible Power Supply (UPS) for 2025
We''ve done some digging into the top picks, backed by data and expert reviews, to bring you the best UPS options for 2024. Let''s dive into the
Read more about our editorial standards. An uninterruptible power supply, or UPS, is basically a surge protector, battery, and power inverter — which turns the battery's stored energy into usable power — in one.
A power failure is more than an inconvenience—it can knock out essential equipment for hours on end. If you have important electronics that have to keep running when the power's out, you'll need an uninterruptible power supply (UPS). Many smart devices have built-in battery packs, with modern laptops packing enough cells to last a whole day.
Uninterruptible power system (UPS) An electrical system designed to provide instant, transient-free backup power during power failure or fault. Some UPSs also filter and/or regulate utility power (line conditioning). User replaceable Capable of being replaced by an end user. Connected equipment may need to be shut down first.
Typically, according to different working principles, UPS power supply covers standby (offline) UPS, line-interactive UPS, online (double-conversion) UPS. The standby UPS system offers only the most basic features, providing surge protection and battery backup. Thus, its power supply quality is not good enough and the cost is much lower.
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