Apple AirTag Batteries

An Apple AirTag is a small, coin-shaped Bluetooth tracker designed to help you locate personal items using Apple's "Find My" network. You can attach it to items like keys, bags, and other valuables to keep track of their location via the Find My app on your iPhone, iPad, or Mac.

The Apple AirTag uses a single CR2032 coin cell battery. This is a standard 3V lithium button battery available at Maplin.

No — Apple has confirmed that CR2032 batteries with a bitter coating (added as a child-safety measure by some brands) may not work in AirTags due to the coating interfering with the battery contacts. Always check the packaging before buying.

A CR2032 is a lithium coin cell battery with a diameter of 20mm and a thickness of 3.2mm. It provides 3 volts of power and is commonly used in small electronic devices like watches, key fobs, fitness trackers, and other low-power devices.

AirTags take a CR2032 battery — also sometimes written as DL2032 or ECR2032. These are all the same size and are interchangeable.