It is 5 years in the US as it says it on the box. The battery can last 10 years but that is way to long from a safety perspective.
Comment on My homelab had the stupidest outage ever
crusty@lemmy.dbzer0.com 1 month agoThe battery in smoke detectors should be changed every year and you should ideally test the detectors with the little button monthly.
In Norway we have an official smoke detector day which is on December 1. where we’re supposed to change the batteries. Its because Christmas is the high season for house fires.
possiblylinux127@lemmy.zip 1 month ago
crusty@lemmy.dbzer0.com 1 month ago
Lithium batteries last 5-10 years, regular alkaline batteries last about 12-18 months. Some sources recommend changing the batteries every 6th month but i personally think that’s a bit excessive.
I only have a small 2 room apartment so i just got myself a cheap-ish optical smoke detector with a built in lithium battery. The battery should last 10 years which is how long smoke detectors last before they should be replaced.
Bronzie@sh.itjust.works 1 month ago
Just took over a house last year with smart detectors connected to a homebase, all Li-Ion. Can see the battery percentage in the app. No more December 1st checks for a long time!
sugar_in_your_tea@sh.itjust.works 1 month ago
That depends on the type of battery. I have some of the old school ones, which are “test every 6 months, replace every year,” but also a fancy schmancy lithium ion-powered one that should be good for 10 years (so test every 6 months, but replace after 10 years).
crusty@lemmy.dbzer0.com 1 month ago
Yea the lithium-ion batteries are pretty good, you can also get 10 year smoke detectors with a built in lithium battery. Also a psa, smoke detectors usually only last 10 years and need to be replaced after that. There’s often an expiry date on the detectors.