News for hackers. Stuff that matters.
Re:Energizer, Walmart are sued for conspiring to raise batte... by newaccount74 on Sunday April 30, 2023 @08:00AM (#35761767)
That's what they said at the store when I complained about the pricing, but I doubt it. It's a lithium coin cell, I doubt there's huge variance like this.

I searched the internet a bit for capacity measurements of cheap coin cells, and the only thing I found is [1], which shows that the discharge curve of a cheap coin cell was almost exactly the same as the one from the data sheet of a name brand cell.

Also, a comment on the page [2] says that name brand cells cost 25c when buying 100s, so a price of 7€ for 2 seems to be enough of a margin to call it a racket.

[1]: https://electronics.stackexchange.com/a/219906

[2]: https://electronics.stackexchange.com/questions/219847/testi...

Re:Energizer, Walmart are sued for conspiring to raise batte... by ChuckNorris89 on Sunday April 30, 2023 @08:03AM (#35761789)
>It's a lithium coin cell, I doubt there's huge variance like this.

Anecdotally, from my own experience, the differences are real and huge.

The no-name CR 2032 cell I bought from the discount store lasted 3-6 months in my room thermometer, while the name brand one closer to 2 years.

>seems to be enough of a margin to call it a racket

I'm not trying to justify the racket pricing, I'm just saying the differences between those no-name Chinese batteries you can find in 1 euro LED candles and good cells from a reputable brand is real and palpable.

Re:Energizer, Walmart are sued for conspiring to raise batte... by newaccount74 on Monday May 01, 2023 @02:24PM (#35776993)
OK, so that's one anecdote saying there's a difference, and one anecdote saying they are the same. Would be sweet if someone bought a couple of different CR2032 cells and tested them.