How to Change the Battery in an Apple AirTag: Complete Step-by-Step Guide

So you got that handy notification on your iPhone letting you know your AirTag battery is running low? Or maybe you just picked up a second-hand AirTag and want to make sure it’s running at its best. If you’re scratching your head, wondering how complicated it might be to swap in a fresh battery (and how to avoid breaking the thing), don’t worry: you’re in the right place. The process is simpler than you think, and a quick replacement can keep your devices, pets, or valuables secure without a hitch.

Most people expect high-tech gadgets to have irreplaceable or custom parts, but Apple’s AirTag actually keeps things refreshingly straightforward. With just a little know-how—and some quick tips about compatible batteries—you can get your tracker back to full strength in just a couple of minutes. Whether it’s your first time or you’re just looking for a refresher, this comprehensive guide will walk you through every step, and then some.

Understanding When Your AirTag Battery Needs Changing

One of the most useful features of the AirTag is that it’s designed to tell you when the battery is running low. Your iPhone will send you a notification when it’s time for a change, eliminating the guesswork. You also have the option to check on your AirTag manually through the Find My app:

1. Open the Find My app on your iPhone.
2. Select the Items tab at the bottom of the screen.
3. Tap your AirTag from the list of items.
4. If the battery is running low, you’ll see ‘Low Battery’ displayed under your AirTag’s name.

This simple check ensures you’re never caught off guard by a depleted battery, keeping your valuables trackable.

How Long Does an AirTag Battery Last?

From the moment you activate a new AirTag, the included battery should power it for about a year under typical usage conditions. The actual lifespan may vary depending on factors like the quality of the battery you use for replacements, how frequently you use Find My alerts, and exposure to extreme temperatures.

Regular replacement is simple: just mark your calendar to check your AirTag battery every year or so—or let your iPhone notify you when it’s time.

What Type of Battery Does an AirTag Use?

If you’re heading out to pick up a new battery, here’s what you need to know:

• The AirTag uses a 3-volt CR2032 coin cell battery, which is widely available and commonly found in small electronics like wristwatches, kitchen timers, and thermometers.
• These batteries are budget-friendly, usually sold in packs (a four-pack often costs just a few dollars online).

But not all CR2032 batteries are created equal. Some have a special bitter coating designed to discourage children from swallowing them. While this coating is a safety measure, it can sometimes interfere with the AirTag’s ability to make electrical contact, meaning the battery may not work at all even though it fits.

To avoid compatibility issues, look for CR2032 packages that specifically say ‘Compatible with Apple AirTag’ if they include this coating—otherwise, go for standard, uncoated batteries from a reliable brand. You can learn more about how to keep your gadgets in perfect condition in our article on electrostatic generators and their history.

If you’re buying online, top brands like Duracell, Energizer, Panasonic, and Sony make quality CR2032 batteries. Always check reviews and product specs when in doubt!

What You Need: Tools and Precautions

You don’t need any special tools to open your AirTag—just your hands will do the job. Some people might prefer to wear gloves for additional grip, but it’s by no means necessary.

Before you start, make sure:

• Your workspace area is dry, well-lit, and clean, so you don’t lose any tiny parts.
• Your replacement CR2032 battery is at hand.
• You have a safe place (such as a battery recycling container) for the used battery.

Step-by-Step Guide to Changing Your AirTag Battery

Here’s where the magic happens! With just a few simple steps, your AirTag will be up and running in no time.

1. Orient the AirTag with the silver Apple logo side facing you. This is the side you’ll open.
2. Press down gently on the silver cover using your fingers, then twist it counterclockwise (about a quarter turn). It should gradually loosen and come away from the white plastic body.
3. Remove the silver lid completely, setting it aside somewhere safe so it doesn’t roll away.
4. Pop out the old CR2032 battery. You may need to tip the AirTag or use a fingernail (don’t use metal tools to avoid scratching or damaging the contacts).
5. Insert the new CR2032 battery into the compartment, making sure the positive “+” side is facing up (this is crucial for proper function!).
6. Place the silver cover back onto the AirTag. Align it with the starting position, then press down gently and turn it clockwise until you hear or feel a click—the cover should be snug.
7. All finished! (And don’t forget to safely recycle the old battery—more on that below.)

If you’re having trouble with any of the steps or notice unexpected resistance, check to make sure there’s no debris around the battery compartment, and that you’ve got the battery oriented correctly. Never force the cover if it isn’t turning smoothly—backtrack and realign.

Battery Not Working? Troubleshooting Tips

Sometimes, users run into issues even after replacing the battery. If your AirTag isn’t working after the swap:

• Double-check the battery orientation. The “+” side should face out, towards you.
• Try a different CR2032 battery. Even new batteries can be defective, especially from unknown brands or multipacks.
• Clean the battery contacts inside the AirTag gently if you see dust or corrosion (a cotton swab works well for this).
• If your battery has a bitter coating and won’t work, replace it with a standard version and look for compatible packaging going forward.

If the AirTag still doesn’t function, consider visiting your local Apple Store or contacting Apple Support for help.

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How to Check the New Battery is Working

Once you’ve installed your fresh battery, the AirTag should emit a brief sound to signal it’s powered up. Open the Find My app on your iPhone and select your AirTag under ‘Items’. If it appears in your app without the low battery warning, you’re good to go!

If you want to do a quick test, move the AirTag away from your phone and use the app’s ‘Play Sound’ function to make sure the tracker responds.

Why Regular Battery Maintenance Is Important

Keeping your AirTag powered up is essential if you rely on it for tracking keys, pets, bags, or even your car. Letting the battery run out means losing real-time location updates—which defeats the purpose of having the device.

Periodic battery checks also help prevent potential device syncing issues or the risk of leakage from expired batteries. If you’re going on a long trip or plan to use the AirTag in harsh conditions, it’s a good idea to check battery life ahead of time.

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What to Do with Old Batteries

It’s crucial to dispose of lithium coin batteries safely. Never throw old batteries in your household trash. Instead, drop them off at a local recycling center, electronics store, or Apple’s battery recycling program. This keeps harmful chemicals out of the environment and ensures batteries don’t become a hazard at home.

Tips for Choosing the Right Replacement Battery

• Always check the expiry date on battery packaging — fresher batteries last longer.
• Stick with reputable brands for reliability and longevity.
• If you must use a CR2032 with bitter coating, verify compatibility with AirTags before purchase.
• Keep spare batteries stored safely, away from children, pets, and high heat zones.

Alternatives to AirTag and Battery-Powered Trackers?

If you find battery changes annoying, or you’re looking for alternatives, there are rechargeable trackers on the market. The Pebblebee tracker offers USB-C charging and may be worth a look if you want to avoid coin cell batteries completely. On iOS, however, AirTags remain the most seamless and robust option, thanks to their deep integration with the Apple ecosystem.

If you’re curious about alternatives, check out WIRED’s guide to the best trackers for an updated roundup.

Changing your AirTag battery is a straightforward process, allowing you to maintain the device’s functionality and keep your belongings tracked without hassle. Following these steps ensures compatibility and prevents potential issues, extending your tracker’s lifespan and guaranteeing peace of mind whenever you need it. Just a few minutes a year can make all the difference for security, convenience, and the effective management of your lost items or pets. Happy tracking!