The new packaging:
https://www.duracell.com/en-us/techn...attery-safety/
From a sports gadget website:
Apparently, Quarq power meters don’t like bad tasting batteries any more than young children. Quarq sent out a service announcement last night indicating that Duracell’s new so-called “bitter batteries”, which have a bitter tasting coating to deter young children from putting them in their mouths, can cause issues with the company’s power meters.
Specifically, the CR2032 batteries can cause the LED to not function, cadence and power dropouts (including for extended periods of time), as well as the unit failing to wake up or pair. In other words, basically any type of failure you could conceive of, these batteries probably caused it. About the only symptom not on the list would be ‘power meter explodes’.
Duracell started shipping the new bitter coated batteries on their CR2032, CR2025, and CR2016 batteries this past September. So, if you happen to pick one of those up, beware it will probably dork with your power meter. And realistically, if Quarq is figuring this out – I’m going to take a guess other sensor companies won’t be far behind. It’s simply more likely that power meter users, being the typical Type-A personalities we are, are more likely to notice quirky things than those coming off heart rate straps or other sensor types.
https://www.dcrainmaker.com/2020/11/...5-updates.html