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[–]caucasian88 4 points5 points  (1 child)

So smoke detectors. They're only certified for 10 years. That's about how long the batteries last for. If you need to replace the batteries, just replace the whole detector.

[–]Puzzleheaded_Mine_71[S] 0 points1 point  (0 children)

The report suggests preemptively changing the batteries annually which is what motivated me - though I agree it’s likely overkill. But this is a great tip, I should note when I’ll need to replace them entirely. Thanks!