Yesterday while cooking I set off the smoke detector, no I did not burn anything. They go off when I cook over a high heat. And yesterday once they started going off they would not stop. I ended up having to disconnect them all (they are hard wired with an interconnect) and I replaced them this morning. Aaaaaaaand let me tell you, I had a sleepless night last night knowing there were no detectors installed.
https://www.southernliving.com/how-often-should-you-replace-smoke-detectors-8774122


They make ones now with an internal battery that lasts 10 years. No more chirping and swapping 9V batteries.
It sucks ass. I’ve gone through about 5 of them well short of 10 years. I do see that this brand released a new version, but this is the one I had. Absolute garbage. They kept giving false positives, and they have no replaceable batteries so they just become E-waste after you disable them. This is the one I had.
https://www.homedepot.com/pep/Kidde-10-Year-Worry-Free-Battery-Smoke-and-Carbon-Monoxide-Detector-Photoelectric-Sensor-3-Pack-21029899-3-21029899-3/203534175?
That’s all they sell at Costco now and I’m worried they won’t last 10 years. They’re kinda pricey too $70 for two.
My hardwired detector was $73 for 1.
In fact, smoke alarms with user-replaceable batteries became illegal in Scotland a couple of years ago.
Still waiting to see if the same regulation gets applied across the entire UK, but anecdotally I’ve noticed it’s already much harder to find anything other than 10-year battery or hardwired models in my part of England.
Those are the only battery ones legal to sell where I live.
I was looking at one of those when I was buying new detectors.