this post was submitted on 28 Mar 2025
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~~Where I live, smoke detectors come with a guarantee that the (9v) battery will keep them operational for at least 10 years.~~
~~When the battery is low on charge, they start beeping in regular intervals and from when the beeping starts it still takes a year or two for them to run out. Which you will surely notice at some point when you're at home.~~
~~So I don't really understand why someone would need a notification.~~
~~I guess a notification could be nice if you have a hearing deficiency, but instead you could make a calender apointment to replace them in 8 years just to be safe.~~
~~The alternative is getting smart smoke detectors that are compatible with home assistant and that know their own battery level.~~
Edit: this last bit still applies and is one way to do it
Then you'd need to selfhost home assistant on some always on device. And buy compatible smoke detectors.
https://www.home-assistant.io/
https://community.home-assistant.io/t/smoke-sensor-with-battery-status-in-ha/357762
Will have a look, my hamsters and I thank you.๐น๐น
Well, if I'm away and there's a fire or CO leak, by the time the neighbors notice, it might well be too late for my hamsters.
OP said it was to notify you when an alarm went off, not when it ran out of batteries.
I have my smoke / CO detectors, KIdde Z-Wave units, tied to my Home Assistant setup. HA will push a notifier to my phone if the smoke or CO alarm goes off and it's able to track the battery life and let me know I need to change them before they start beeping.
Ooooh, that makes much more sense, thank you!