Do All Hardwired Smoke Detectors Have a Battery Backup? Insights on Placement and Replacement
Yes, all modern hardwired smoke detectors come with a battery backup. This backup usually powers the alarm for at least 7 days during an electricity outage. The battery maintains alarm functionality, ensuring essential home protection even when the power is unavailable. Placement is important for optimal performance. Position smoke detectors inside each bedroom, outside sleeping … Read more