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similarly when I needed to replace my smoke alarm batteries I considered buying replacements off amazon (9V ones are pretty expensive)

I decided against as I didn't want some counterfeit ripoff with weird failure modes

if this sort of consumer behaviour becomes common it will be the death knell for their retail business



I debated Amazon for this but decided to go to a hardware store instead. Found out they make smoke alarms with 10 year lithium batteries now, and they're not that much more expensive.


In some states (NY is one) those 10 year battery ones are the only ones legal to sell.

https://www.democratandchronicle.com/story/news/2019/04/01/n...




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