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Is there any scientific reason why smoke detectors always start the chrip of doom in the middle of the night? Observation bias? A deep seeded hatred in REM sleep? Also why do they still use 9v batteries that nobody has kept around since the 90s so you have to go slowly insane as the tell tale smoke detector slowly chirps away at your very soul minute by minute as you wait for any store in the world to open since it’s New Year’s Day.

@cercerilla could be that the colder temp in homes at night makes the nearly dead battery less able to supply current and makes the measured voltage cross the threshold into beeping territory.

Cercerilla @cercerilla

@sharp that does make sense, we keep our house quite a bit colder overnight.