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Not XKCD - Smoke detector batteries (lemmy.world)

submitted 3 months ago by [email protected] to c/[email protected]

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This comic is inspired by XKCD and recent events and observations in my life. Disclaimer: I have no artistic ability and blatantly rip off the XKCD style and artwork, however the idea is mine and I feel it fits.

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[–] [email protected] 10 points 3 months ago (1 children)

I shall counter with a hypothesis:

It could be that extended lower temperatures at night slow battery chemistry to the point where the voltage sags below the trigger threshold. It would take quite a few hours to cool the battery down from day time ceiling temps, so this would naturally occur in the early hours of the morning just before temperatures rise again.

[–] [email protected] 1 points 3 months ago* (last edited 3 months ago)

oh come on, we are talking about detectors inside heated apartments, not an igloo.

edit: ok, but now i am curious. it seems that other people share the same theory, but that doesn't mean it is not just shared myth.

https://www.google.com/search?q=fire+detectors+battery+dead+time+of+day

if anyone has some research or link they consider interesting on the topic, i'd be happy to look at it.