Background
Apple AirTags are small tracking devices designed to help users find lost items using the Find My network.
Analysis
AirTags use a replaceable CR2032 battery that lasts for about a year.
Steps
1. No need to charge AirTags, simply replace the battery when it runs out.
2. To replace the battery, twist the back cover counter-clockwise and insert a new battery.
3. Make sure the battery is properly aligned before closing the back cover.
Conclusion
Apple AirTags do not need to be charged as they use replaceable batteries.