Electronics · Bluetooth Trackers
How long do the batteries last, and are they replaceable?
Reviewer consensus
Most coin-cell trackers (AirTag, UGREEN FineTrack, ATUVOS, Tile Pro, Tile Mate) use a user-replaceable CR2032 rated for roughly a year; UGREEN claims about two years on the FineTrack. Some slim wallet-style cards use sealed rechargeable batteries instead. Verified-purchase reviewers do flag isolated cases of Tile units dying inside a few months, so the replaceable battery is worth prioritizing if longevity matters.