How to Replace an AirTag Battery?

Apple AirTags use a common, user-replaceable CR2032 coin battery that lasts about a year. Swapping it takes less than a minute — no tools required.

What you need:

• A new CR2032 coin battery (3V lithium, sold almost everywhere)

Step-by-step:

1. Hold the AirTag with the shiny stainless steel back (the side without the Apple logo) facing up.
2. Press down and twist counter-clockwise. Push down firmly on the steel cover and rotate it counter-clockwise (to the left). It only turns a short way.
3. Lift off the cover once it stops and comes loose.
4. Remove the old battery. Tip it out.
5. Insert the new CR2032. Place it with the positive (+) side facing up, toward the cover you removed (the printed "+" side should face away from the AirTag body).
6. Confirm it's seated. The AirTag will usually play a sound when the new battery makes contact, confirming it's working.
7. Replace the cover. Line up the cover's tabs with the slots, press down, and twist clockwise until it stops to lock it back in place.

Tips:

• Avoid batteries with a bitterant coating. Some CR2032 batteries have a bitter-tasting coating (a child-safety feature) that can prevent good electrical contact — if the AirTag doesn't chime, try a plain CR2032.
• The battery typically lasts about a year; your iPhone will notify you when it's running low.