I am looking to purchase a cr2032 lithium battery without a bitter coating as it disrupts the connection to the device I am using. Many larger companies (duracell, energizer, etc.) have this coating as a safety measure and I am trying to figure out if the Sparkfun cr2032 coin cell batteries come without it? Thank you!
While I can’t guarantee it, the MSDS doesn’t mention denatonium benzoate or child safety so my presumption is that it does not have a bitterant coating - please update this thread if you find otherwise!
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I’ve given up trying to avoid the bitter apple coating and simply use a small piece of about 400 grit Emory sanding paper around the edge and lightly on the front and back terminals.
it doesn’t take much. Just a quick swipe/ I found this out the hard way when a lot of my airtags (Apple product) had dead batteries and the new 2032’s didn’t solve the problem. Wiping with alcohol or a lense wipe doesn’t work. You need to scratch that edge and the bottom.
Airtags need the edges scraped!
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Thank you!
Great, thank you!
Rinse in warm water & dry?
A batt I got for my car fob has the embittering coating but also blue dye microdots that get on my hands during routine handling. Blue mouth babies, lol.
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I haven’t purchased a CR2032 from SparkFun in quite a while but i can say the ones they sold 5 years ago did not have the bitter coating.
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