AirTag shows low battery even with a new battery

Hi SylBee,

Thanks for using Apple Support Communities. We understand your AirTag isn't working as expected, and we're happy to help. You mentioned trying to reset it, and that's a great step. Be sure you're using the steps to reset your AirTag here:

1. Press down on the polished stainless steel battery cover of your AirTag and rotate counterclockwise until the cover stops rotating.

2. Remove the cover and the battery.*

3. Replace the battery.

4. Press down on the battery until you hear a sound. This sound means that the battery is connected. 

5. When the sound finishes, repeat the process four more times, removing and replacing the battery, then pressing down on the battery until you hear a sound. You should hear a sound each time you press on the battery, for a total of five sounds. The fifth sound is different from the previous four. This indicates that the AirTag is now ready to pair.

6. Replace the cover by aligning the three tabs on the cover with the three slots on your AirTag.

7. Press down on the cover.

8. Rotate the cover clockwise until it stops rotating.

See more about those steps here: How to reset your AirTag - Apple Support

If this issue persists or your unable to reset, reach out here: Get Support

Thanks.