Yes, you can replace an AirTag battery yourself in about 30 seconds

AirTag batteries are user-replaceable. You do not need tools, a technician, or an Apple Store visit. The battery compartment is on the back of the AirTag—a white plastic disc that twists off by hand. Inside is a standard CR2032 coin-cell battery, the same type used in watches, calculators, and hearing aids. You can buy replacements at any pharmacy, grocery store, or online retailer for $3 to $8 per battery.

The entire swap takes about 30 seconds. Apple rates the battery life at roughly one year of typical use, though the actual time depends on how often your AirTag sends location updates. A tag you check on daily will drain faster than one sitting in a drawer.

Key Takeaways

  • AirTag batteries are CR2032 coin cells that you replace by twisting off the white plastic back disc—no tools required.
  • Battery life is typically one year, but varies based on how often the AirTag is used and how frequently it updates its location.
  • Replacement batteries cost $3 to $8 and are sold at pharmacies, supermarkets, and online—the same batteries used in watches and calculators.
  • Your AirTag will alert you when the battery is low, giving you time to buy a replacement before it dies completely.

How to open the battery compartment

Hold the AirTag with the white plastic side facing you. Place your thumb on the metal side and your fingers on the white disc. Twist the white disc counterclockwise—it will turn about a quarter turn before it stops. The disc will come free in your hand.

The battery sits inside the compartment, shiny side up. It will not fall out on its own. If you have trouble gripping the disc, try wrapping a small piece of cloth around it for better traction, or use the edge of a coin to explore gentle leverage. Do not force it; if it does not turn easily, you are likely twisting the wrong direction.

Removing and installing the new battery

Lift the old battery straight up and out of the compartment. Set it aside. Take your new CR2032 battery and place it into the compartment with the shiny (positive) side facing up. This matters—if you install it upside down, the AirTag will not work.

Once the battery is seated, twist the white disc back on clockwise until it stops. You will feel a slight resistance as the threads catch. Do not over-tighten; a firm quarter-turn is enough. Your AirTag should reconnect to your iPhone automatically within a few seconds. If it does not, open the Find My app and check the AirTag's status.

Where to buy replacement batteries

CR2032 batteries are sold almost everywhere. Check the pharmacy or health section of any supermarket, drugstore, or big-box retailer. Walmart, Target, CVS, and Walgreens all stock them. You can also order them online from Amazon, eBay, or the manufacturer's website. Buying a multi-pack (usually 4 to 10 batteries) costs less per battery than buying a single one.

Avoid extremely cheap batteries from unknown sellers. Stick to recognizable brands like Energizer, Duracell, Panasonic, or Sony. A quality battery will last the full year; a low-quality one may die in months. The price difference is small enough that it is not worth the risk.

What happens when the battery is low

Your iPhone will send you a notification when the AirTag battery is running low—usually a few days before it dies completely. Open the Find My app, tap the AirTag, and you will see a "Replace Battery" message. At that point, you have time to buy a new battery without the AirTag going offline.

If the battery dies before you replace it, the AirTag will stop sending location updates. You will not be able to find it using Find My until you install a fresh battery. This is why it is worth replacing the battery as soon as you see the notification.

Common mistakes to avoid

The most frequent error is installing the battery upside down. The shiny side must face up toward you when you look into the compartment. If your AirTag does not respond after a battery swap, remove the battery, flip it, and try again.

Do not force the white disc. If it will not turn, you are likely twisting the wrong direction or gripping it in a way that prevents rotation. A gentle, steady twist is all you need. Forcing it can crack the plastic or strip the threads.

Do not throw away the old battery in regular trash. CR2032 batteries contain lithium and should be recycled. Most retailers that sell batteries also accept used ones for recycling—ask at the customer service desk or check for a battery recycling bin near the checkout.

When to contact Apple

If the battery compartment will not open, or if the AirTag does not respond after you install a fresh battery, contact Apple Support. A stuck compartment may indicate a manufacturing defect, and Apple will replace the AirTag under warranty if it is less than one year old.

If your AirTag is older than one year and the battery compartment is damaged, Apple offers a mail-in replacement service for a fee. You can also purchase a new AirTag if repair costs are high.

Frequently Asked Questions

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

No. AirTag is designed for CR2032 batteries only. Other coin-cell sizes (like CR2025 or CR2016) will not fit or work. Stick to CR2032 from a reputable brand.

How long does a CR2032 battery last in an AirTag?

Apple rates battery life at approximately one year under typical use. Heavy use—checking the AirTag's location multiple times per day—will shorten this. Light use or leaving the AirTag in one place will extend it.

What if I install the battery and the AirTag still does not work?

First, remove the battery and check that it is a CR2032 and that the shiny side is facing up. Reinstall it and wait 10 seconds. If the AirTag still does not appear in Find My, try removing and reinstalling the battery one more time. If it still fails, the AirTag may be defective and should be replaced.

Is it safe to replace the battery myself?

Yes. CR2032 batteries are safe to handle with bare hands. They are not toxic and do not require special precautions. straightforward avoid swallowing the battery or exposing it to extreme heat.

Can I buy generic CR2032 batteries instead of name brands?

Generic batteries work, but quality varies widely. Stick to established brands like Energizer, Duracell, Panasonic, or Sony. The small price difference is worth the reliability.