I’d never noticed the “don’t use Energizer” note on the smoke detector before. But sure enough, it’s still chirping.

So I went to look online for why, and found that auto-complete has some odd ideas of what smoke detectors need.

Search box offering auto complete for "smoke detector requires specific brand..." ...of product? ...of sunglasses? ...of orange juice?????

For the record: I didn’t find a satisfactory answer. A lot of talk about types of batteries based on power consistency and drop-off rates. You don’t want something that stays high-power longer, then quickly drops below the level needed to produce a low-battery alert. That makes sense. But specific brands? The consensus was split between specific brands having been rated in tests, or specific brands having deals with the smoke detector manufacturer.

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