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Expect an AirTag battery to last more than a year
An AirTag works by transmitting a secure Bluetooth signal. It's an always-on device that relies on a small, non-rechargeable CR2032 button cell battery to help you keep track of things. With its low power consumption, an AirTag battery can last over a year with normal use.
AirTags are small, coin-sized device trackers that don't have charging ports. They run on the standard CR2032 lithium 3V coin battery, which is not rechargeable. So you have to take it out when it runs out and replace it with a new one.
