Welcome to the tag category page for Longevity!
AirTag is designed to run for more than a year on a standard battery, which can be easily replaced when the device runs out of juice. The battery used in AirTag is a CR2032 lithium 3V coin cell unit, available at most electronic and drug stores. To replace the battery, press down on the polished stainless steel battery cover and rotate counterclockwise until the cover stops rotating. Remove the cover and battery, and insert a new battery with the positive side facing up. There is no need or way to charge an AirTag because the device is designed with user replaceable batteries. The Find My app will indicate when the AirTag needs a new battery. The battery life of an AirTag depends on usage, but Apple has specified the device to run for over a year.