How do I re-add an AirTag after replacing the battery?
My AirTag battery died. I replaced it. It wasn’t findable. So I deleted it and trying to add it again. Still nothing.
[Re-Titled by Moderator]
iPhone 15, iOS 18
Normally, just replacing the AirTag's battery should not require that you unpair it from your Apple Account. It should re-appear on the "Items" tab in the Find My app on your iPhone.
When you replaced the battery, did the tag emit a beep after placing the battery cover back on? If so, that would indicate that the battery is properly powering the tag. If not, then there could be an issue with the replacement battery. This is often caused by batteries with bitterant coatings.