It seems that time for early adopters concerning their AirTag batteries. I’ve been slowly replacing them as I get the battery alerts. Ben Lovejoy suggests biting the bullet and replacing them all when the first warning appears. I wish I’d done that.
On the subject of AirTags, I recently bought a few Apple TV remotes with built-in AirTag holders. I love these. I can find the remote via sonar, and they double as NFC tags so I can trigger “Movie” lighting by holding them to my phone.