What distinguishes zinc-air hearing batteries from other types of batteries?

These batteries have protective stickers on the bottom.
After removing them, wait at least 2 minutes before the battery is placed in the camera.
This time is needed for oxygen to penetrate the battery - only then does the battery activate and reach the appropriate voltage to work.
Failure to follow these recommendations may result in the camera considering the battery to be discharged because it does not yet have the appropriate voltage.