Can a Hardwired Smoke Detector Run on Battery Only? Options and Comparisons Explained
A hardwired smoke detector cannot run on battery power only. It needs a wired connection for basic functionality. However, some models come with long-life, non-replaceable lithium batteries as backup. In the U.S., these safety devices meet regulations to ensure reliable sound activation during emergencies. Some consumers may question whether they can operate a hardwired smoke … Read more