Apple has sold at least 55 million AirTags since its launch in April 2021. Many of them have run down their tiny batteries and it's time to replace them – if you know how.
I’ve had most of my AirTags for almost two years and when I look in Apple’s Find My app and at Devices, which shows me where all my AirTags and the locations of my wallet, backpack, and keys they're attached to, I see a bunch of red battery symbols. What’s that? You didn’t know there was a flat, little battery inside that candy-shaped tracking device? There is and it’s actually a fairly standard CR 2032 lithium-ion watch battery available for a few dollars (almost £6 in the UK and $6 in AU) in the battery aisle of most drug and convenience stores.
