Even the 9V ones didn’t last forever.
I found that out one very exciting morning, when it decided to sing me the song of its people. If you’ve never stumbled down the stairs at 4am looking for a fire with your bollocks flapping about, I heartily recommend it.
CookieJarObserver@sh.itjust.works 10 months ago
No of course not, but you didn’t need a completely new smoke alarm when the battery is empty.
Blackmist@feddit.uk 10 months ago
The battery was fine. It was the alarm that had degraded to the point that it always “detected” smoke.
Turns out smoke alarms should be replaced every 10 years or so.