Editor's Note: March 16, 2026: We've added a section answering some frequently asked questions related to purchasing a UPS backup at the end of this story, which we hope will help you figure out how ...
You know the signs: The lights flicker, your humidifier stops humming, and some piece of tech—there’s always one—makes a mournfully long beep from another room to let you know that it’s losing ...
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