Opening an AirTag takes 15 seconds and requires no tools

An AirTag is a small tracking device made by Apple that you attach to keys, bags, or wallets to find them if they go missing. Inside is a replaceable battery that lasts about a year. To open it, hold the flat metal side and twist the white plastic back counterclockwise until it comes loose — it will pop off in your hand. The battery sits in a metal holder inside. That's the entire opening process.

You don't need a screwdriver, a knife, or any special tool. The design is intentionally straightforward because Apple expects owners to replace the battery themselves rather than sending the device in for service. Once you've twisted it open once, you'll know exactly how much force to use the next time.

Key Takeaways

  • Hold the metal side of the AirTag and twist the plastic back counterclockwise to open it — no tools needed.
  • The battery is a standard CR2032 coin cell that costs a few dollars and is available at most drugstores and supermarkets.
  • Remove the old battery by lifting the metal holder, replace it with a new one, and twist the back on clockwise until snug.
  • The AirTag will beep when you insert a fresh battery, confirming it's working.

What battery type your AirTag uses

AirTags use a CR2032 battery, a common coin-cell battery about the size of a dime. You can buy these at pharmacies like CVS or Walgreens, at supermarkets in the battery aisle, at hardware stores, or online. A pack of two or four costs between $3 and $8 depending on the brand. Name brands like Duracell and Energizer work fine, and store brands are identical in performance.

The battery lasts roughly one year under normal use, though it depends on how often the AirTag connects to your phone and how frequently you trigger its speaker. If your AirTag stops making sound when you press the button or stops showing up in the Find My app, the battery is likely dead and needs replacement.

Step-by-step: removing and replacing the battery

Hold the AirTag with the metal side facing up and the white plastic back facing down. Grip the metal side firmly with one hand. With your other hand, grip the white plastic back and twist it counterclockwise — the direction opposite a clock's hands. After a quarter turn or so, you'll feel it loosen. Keep twisting until the back pops free. Set the metal side down on a clean surface.

Inside the metal casing, you'll see a small metal battery holder with a tab sticking up. Lift this tab gently and the old battery will come out. Drop the new CR2032 battery into the empty space with the flat side facing up (the side without the raised edge). The metal holder will snap back down over it automatically. You should hear a beep from the AirTag — this confirms the battery is making contact and the device is working.

Now twist the white plastic back onto the metal side clockwise (the direction a clock's hands move) until it's snug. Don't force it — it should stop naturally when it's fully seated. Your AirTag is ready to use.

Why the battery dies and how to extend its life

The CR2032 battery drains because the AirTag is constantly communicating with your iPhone or other Apple devices to update its location. Every time your phone checks in with the AirTag, the battery loses a tiny amount of charge. If you use the Find My app frequently or press the button often to make it beep, the battery will drain faster than the advertised one-year estimate.

To extend battery life, avoid pressing the button repeatedly just to hear the beep, and don't open the Find My app more often than necessary. If you have an AirTag on something you rarely look for — like a suitcase you use once a year — it will last longer than one on your keys, which you check constantly. There's no way to turn off the AirTag without removing the battery, so if you won't need it for months, taking the battery out is the only option.

What to do if the back won't open

If you twist the back and it won't budge, you may be turning the wrong direction. The back twists counterclockwise — the opposite of tightening a jar lid. Try again, making sure you're turning toward the left. If it still won't move, your grip may be slipping. Dry your hands and the AirTag completely, then try again with a firmer grip on the metal side.

In rare cases, the plastic back can stick slightly if dust or debris is in the seam. Wipe around the edge where the metal and plastic meet with a dry cloth, then try twisting again. If the back still won't open after these steps, contact Apple Support — a defective AirTag is uncommon, but it can happen.

Disposing of the old battery safely

Don't throw the old CR2032 battery in the trash. Most communities have battery recycling programs at pharmacies, electronics stores, or municipal hazardous waste facilities. Best Buy, for example, accepts batteries for free recycling at customer service. Call your local waste management department or search online for "battery recycling near me" to find the closest drop-off location.

If you have several old batteries, keep them in a small container in a cool, dry place until you can take them to a recycling center. Batteries can leak or corrode if stored in damp conditions, so avoid leaving them in a bathroom or basement.

Frequently Asked Questions

Can I use a different battery type in my AirTag?

No. AirTags are designed specifically for CR2032 batteries. Using a different size or type will either not fit or damage the device. Stick with CR2032 replacements from any reputable brand.

What if my AirTag beeps when I insert the new battery but then stops working?

The beep means the battery made contact. If the AirTag stops responding after that, make sure the plastic back is twisted on fully and evenly. A loose back can break the connection. If it's tight and still not working, try removing and reinserting the battery to reseat it.

How do I know if the battery is actually dead or if something else is wrong?

If the AirTag doesn't beep when you press the button and doesn't show up in Find My, the battery is almost certainly dead. Replace it first. If a fresh battery doesn't fix the problem, the AirTag itself may be faulty — contact Apple Support.

Can I replace the battery while the AirTag is attached to my keys or bag?

Yes. You don't need to remove the AirTag from whatever it's attached to. Just hold it steady and twist the back off. This is one of the advantages of the design — you can swap the battery anywhere without taking it apart.