AirTag not working after battery replacement

Replaced airtag battery, followed steps to clean, put new clean battery in airtag and get NO sounds that it is working. Tried another battery, same thing. Tried turning phone off then on, still doesn't work. Suggestions?

Posted on Dec 5, 2025 8:18 AM

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Question marked as Top-ranking reply

Posted on Dec 5, 2025 8:51 AM

Start here:

How to replace the battery in your AirTag - Apple Support


As described within the support document, ensure that the CR2032 battery does not have a bitterant coating - or is explicitly marked as being compatible with AirTag. Many batteries with bitterant coatings are not suitable for use with Airtag.


If you are certain that the new battery is suitable, you may need to fully reset the AirTag:

How to reset your AirTag - Apple Support


1 reply
Question marked as Top-ranking reply

Dec 5, 2025 8:51 AM in response to Carol592

Start here:

How to replace the battery in your AirTag - Apple Support


As described within the support document, ensure that the CR2032 battery does not have a bitterant coating - or is explicitly marked as being compatible with AirTag. Many batteries with bitterant coatings are not suitable for use with Airtag.


If you are certain that the new battery is suitable, you may need to fully reset the AirTag:

How to reset your AirTag - Apple Support


AirTag not working after battery replacement

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