Opening the AirTag to access the battery

The battery in an AirTag sits behind a stainless steel back cover that twists off by hand. Hold the AirTag with the white plastic side facing up, then grip the metal back cover firmly and turn it counterclockwise. You do not need tools — your fingers alone provide enough grip. The cover will loosen after a quarter turn and come free after a half turn total.

If the cover is stuck, try wrapping a thin cloth around it for better grip, or run warm water over the AirTag for a few seconds to slightly soften any adhesive residue. Do not use pliers or a wrench, which can scratch or dent the cover and make it harder to reseal.

Key Takeaways

  • The AirTag battery cover twists counterclockwise by hand and requires no tools to remove.
  • A CR2032 coin cell battery powers the AirTag and lasts roughly one year under normal use.
  • The battery sits in a small metal holder inside the plastic case and lifts straight out once the cover is off.
  • After inserting a fresh battery, twist the cover clockwise until it stops, then test the AirTag in the Find My app to confirm it is working.

Removing the old battery from its holder

Once the metal cover is off, you will see a small metal battery holder inside the white plastic case. The CR2032 coin cell battery sits flat in this holder with the positive side facing up. Gently lift the battery straight out — it should come free with light pressure from your fingernail or a plastic spoon.

Do not use a sharp metal tool like a knife or screwdriver, as you can slip and damage the plastic case or the battery holder. If the battery is stuck, try tilting the AirTag slightly so gravity helps, or use a small piece of tape pressed onto the battery to lift it.

Installing a new CR2032 battery

Purchase a fresh CR2032 battery from any pharmacy, supermarket, or electronics store — they cost between one and three dollars. Before you install it, check that the positive side (marked with a + symbol) is facing up. Slide the new battery into the metal holder, making sure it sits flat and level.

You will hear or feel a small click when the battery seats properly. Do not force it — if it does not slide in smoothly, remove it and check that the positive side is facing up and that the battery is aligned straight with the holder.

Sealing the AirTag and testing it

Once the battery is in place, line up the metal cover with the white plastic case. The cover has a small notch that aligns with a tab on the case — use this as your guide. Twist the cover clockwise until it stops, which usually takes a quarter to a half turn. The cover should sit flush with the case with no gaps.

Do not overtighten the cover. If you feel strong resistance before it sits flush, stop and check that the battery is seated properly and the cover is aligned correctly. Forcing it can crack the plastic case.

Confirming the battery is working

Open the Find My app on your iPhone or iPad and tap the Items tab at the bottom. Tap your AirTag in the list — if the battery is installed correctly, you will see a green dot next to the AirTag name and the battery level will display. If you see a low battery warning or a red dot, the battery may not be seated properly or may be defective.

If the AirTag does not appear in the list at all, try removing the battery, waiting ten seconds, and reinstalling it. If it still does not show up after a few minutes, the battery may be dead on arrival — try a different CR2032 from another package or brand.

What to do with the old battery

Do not throw a used CR2032 battery in the trash. Most pharmacies, supermarkets, and electronics retailers have a battery recycling bin near the checkout or customer service desk. Some municipalities also run hazardous waste collection days where you can drop off batteries for free. Check your local waste management website or call your city or county to find the nearest drop-off location.

If you have only one or two old batteries, you can also store them in a sealed plastic bag in a cool, dry place until you have enough to make a trip to a recycling center worthwhile.

Frequently Asked Questions

How often do I need to replace the AirTag battery?

A CR2032 battery typically lasts about one year under normal use. The Find My app will show you the current battery level, and you will receive a notification when the battery is running low. Replacement frequency depends on how often you use the AirTag and how far it travels.

Can I use a different type of battery in my AirTag?

No. The AirTag is designed specifically for a CR2032 coin cell battery. Using a different battery type or size can damage the device or cause it to malfunction. Always use a fresh CR2032.

What if my AirTag still does not work after I replace the battery?

First, remove the battery, wait ten seconds, and reinstall it to reset the connection. If the AirTag still does not appear in Find My after a few minutes, try a different CR2032 battery to rule out a defective cell. If a fresh battery does not solve the problem, the AirTag itself may be damaged and you may need to contact Apple Support.

Is the battery cover waterproof after I seal it?

The AirTag is water-resistant but not waterproof. The battery cover creates a seal that protects against splashes and brief submersion, but the device is not designed for swimming or prolonged water exposure. If you submerge your AirTag, dry it thoroughly and let it sit for several hours before using it again.