How to replace the battery in your AirTag - Apple Support

You can replace the battery in your AirTag. Here's how. 

Apple AirTags: Everything You Need to Know - CNET

How to change the battery in your Apple AirTag

Set up Find My - Apple Support

How to Check Your iPhone's Battery Health

Are You Being Tracked by an AirTag? Here's How to Check

Add an AirTag to Find My to keep track of personal items - Apple Support

How To Replace Apple AirTag Battery

Apple Says Don't Buy AirTag Replacement Batteries With Bitter Coating - MacRumors

How to replace your AirTag battery

This Apple AirTag Battery Replacement Is Only $6