I had the same issue and after lots of trials I came to realize that the BATTERIES ARE THE ISSUE !.CR2032 batteries all nominally have a voltage of 3 volts ( they should read above 3.25 / 3.3, and open circuit voltages of approximately 3.6 volts. But the reading is not enough! The batteries should be FRESH!! Recently purchased! I tend to store batteries of different sizes, so to always have them handy. The problem is that if they remained stored for too long they tend to loose their power and the reading maybe good at the unsealing but it is not accurate ! You may notice that after a little while testing it again will show a lower reading! That means the battery is “exhausted” and has no real power. After testing all 6 batteries from the same pack that I had stored for probably more than just a couple of years, none of them could erase the indication that a new battery was needed. I even tried the recommendation given above, of deleting the air tag and adding it back again and yet it still indicated a new battery needed. Then I put in all three AirTags that needed a new battery, batteries from a much more recently purchased pack of 6 CR2032 batteries. And they all finally made the indication disappear from all 3 . So always remember to use new recently purchased “fresh” batteries and never stock too many batteries specially of a type you do not use frequently Remember the indication is not a safe way to reassure the power of the battery. It may indicate at first 3.25 or even 3.3 but it’s misleading !! If of course it shows 2.7 or even 3.1 it is a dying battery. Always prefer choosing renowned and reliable battery brands! Special cheaper deals from unknown brands are to be avoided as well as shop branded outsourced batteries ! You will regret it at one point for sure. As it is said you get what you paid for. 😎
