How can I replace the battery on my AirTag?
I can’t rotate it clockwise or otherwise. What is the secret, or do I have to buy a new AirTag each time the battery runs down?
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There is no need to buy a new AirTag each time the battery dies:
To open the AirTag: Press down on the polished stainless steel battery cover of your AirTag and rotate counterclockwise until the cover stops rotating. Then, remove the cover and battery.
The AirTag battery type is a CR2032 lithium 3V coin battery, which can be found at most electronic and drug stores.
For more information: How to replace the battery in your AirTag - Apple Support