I just got the following notification via email:
Battery compatibility notice
The newest Duracell CR2032 batteries are not compatible with SRAM and Quarq power meters.
Use of a Duracell battery with a bitter coating ring will result in symptoms similar to a drained or low battery.
These could include:
- No wake or pairing possible
- Loss of combined cadence and power for extended periods
- No LED function
Duracell 2032 Lithium Coin Battery with Bitter Coating - bitter coating ring added as a swallowing deterrent.