Replace the batteries in smoke detectors yearly. Hard-wired smoke detectors have backup batteries that must be replaced as well. If you’ve never had yours checked, do so now! Published September 13, 2021 at 1080 × 1080 in Replace the batteries in smoke detectors yearly. Hard-wired smoke detectors have backup batteries that must be replaced as well. If you’ve never had yours checked, do so now! ← Previous Next →
