AirTag Battery Replaced But Not Working? Here Are the Fixes. Apple airtag battery removal

What Are Apple AirTags and How Do They Work?

Apple AirTags are quarter-sized Bluetooth trackers designed to help you keep tabs on valuables or frequently lost items like your car keys, wallet, or luggage. We’ll explain how Bluetooth tracking technology works, how to set up an AirTag, how to make sure no one’s tracking you without your knowledge, and more.

Sign up for our free weekly newsletter to get the best safety news, product info, and deals.

By signing up, you agree to our Terms and Conditions and Privacy Policy.

Two women have filed a class action lawsuit against Apple with the claim that AirTags made it easier for them to be stalked and harassed. There have been a slew of headlines since AirTags launched about bad actors using the devices for nefarious purposes.

Earlier this year, Apple instituted new safeguards to alert people when AirTags are near them, and the company is also working with law enforcement on crime issues related to the devices.

Learn more about the risks of AirTags and how to keep them safe on our YouTube channel.

Introduction to Apple AirTags and how they work

How do Apple AirTags work?

Apple AirTags emit a Bluetooth signal that anonymously connects to any nearby device active within Apple’s Find My network. The AirTag’s location is triangulated based on the strength of the Bluetooth signal sent to those third-party devices.

Your AirTag’s location information is uploaded to the Cloud and pinned on a map for easy reference.

AirTags can be found in two other ways: beeping and Precision Finding.

If you know the AirTag’s somewhere in your living room, for example, but you can’t find it, use the Find My app to make the AirTag beep. Just follow the beep until you uncover the AirTag.

Precision Finding requires an iPhone with a U1 ultra wideband chip, so it only works with iPhone 11 and up. It’s like a quest arrow in a video game: your iPhone turns into a compass that points toward the AirTag and tells you exactly how far away it is.

Amazon.com price as of post date. Offers and availability may vary by location and are subject to change. Read full disclaimer.

What is Apple AirTag’s range?

AirTags need to be within about 33 feet of an iPhone or other device in the Find My network for its Bluetooth signal to register. 1

Does Apple AirTag need Wi-Fi?

No, Apple AirTags don’t work with Wi-Fi.

Does Apple AirTag have GPS?

No, Apple AirTags don’t have GPS. But the technology is similar. Instead of calculating a location using a network of satellites, AirTags use a network of around 1.8 billion iPhones, iPads, Apple Watches, and Macs.

Are Apple AirTags compatible with Android?

Yes and no. You need an iPhone to set up an AirTag, but you can discover it with an Android device.

Download Apple’s Tracker Detect app from the Google Play store to scan for nearby AirTags. Hopefully one of them is yours.

Can Apple AirTag be on two phones?

Apple AirTag can be used on two phones only if you’ve used the same Apple ID to log into both phones. Apple allows AirTags to be registered to one ID only.

Are Apple AirTags waterproof?

Technically, Apple AirTags are water resistant, not waterproof. They can withstand being under about 3 feet of water for 30 minutes. It’ll be fine in the rain and might even survive a trip through the washing machine, but don’t expect an AirTag to help you find something lost in the lake.

Is there a maximum number of Apple AirTags I can register to my account?

You can register up to 16 Apple AirTags under one Apple ID.

Apple AirTag batteries

How long do Apple AirTag batteries last?

AirTag batteries should last for about a year with four daily location pings and one daily use of the Precision Finding feature.

Are Apple AirTag batteries replaceable?

Yes, Apple AirTags use replaceable CR2032 lithium 3V coin batteries. Apple warns that batteries with bitterant coatings may not work right in AirTags. 2

How do I replace an Apple AirTag battery?

Press down on the silver side of the AirTag and turn the silver part counterclockwise. Take out the old battery and put a new one in with the positive sign facing up. You should hear a beep to confirm that the new battery is working.

Replace the silver AirTag cover by aligning the three tabs into their slots, pushing down, and rotating the silver cover clockwise as far as it will go.

Are Apple AirTags rechargeable?

No, Apple AirTags aren’t rechargeable.

How will I know when my Apple AirTag needs a new battery?

You’ll get a push notification on your phone when the AirTag’s battery gets low. You can also check the AirTag’s battery level by going to the Find My app, tapping Items, and then selecting the AirTag in question.

Activating, using, and troubleshooting an Apple AirTag

How do I activate an Apple AirTag?

Before activating an Apple AirTag, double-check the following settings in your iPhone:

  • It’s running iOS 14.5 or later. Go to Settings General About Software Version to confirm.
  • Two-factor authentication is enabled. Go to Settings [Your Name] Password Security Two-Factor Authentication to confirm.
  • Location services are turned on. Go to Settings Privacy Location Services to confirm.
  • Find My is turned on. Go to Settings [Your Name] Find My to confirm.
  • Bluetooth is turned on. Go to Settings Bluetooth to confirm.
  • It’s connected to Wi-Fi or has a strong cellular signal.

To activate an Apple AirTag, remove the battery tab. You should hear a beep that confirms the battery’s working.

Hold the AirTag near your iPhone. A pop-up will appear on the screen that says “AirTag.” Tap Connect.

Name the AirTag from the drop-down list or choose Custom to type in a unique name. Tap Continue, and then tap Continue again to confirm that you’re registering the AirTag with the correct Apple ID. Finally, tap Done.

How do I find an Apple AirTag?

If you own the AirTag, go to the Find My app and click on the AirTag’s name. Note where the AirTag is on the map. If it’s nearby, swipe up to show more options. Tap Play Sound to make the AirTag beep. Follow the sounds until you find the AirTag.

You can also say, “Hey Siri, find my [name of your AirTag]” to activate the beeps with a compatible voice hub.

If you have an iPhone 11 or later, you should also see an option for Precision Finding, which shows the direct and approximate distance of your nearby AirTag.

If you don’t own the AirTag, skip down to the question “Is an AirTag Tracking Me? ”

When do Apple AirTags make noise?

Apple AirTags make noise when prompted to do so by someone who’s nearby and trying to find its exact location.

They also chirp within 8 to 24 hours of being separated from their owner’s phone.

You’ll also hear some confirmation chirps when changing the battery or resetting the AirTag.

Why is my Apple AirTag beeping?

It may have gotten separated from your phone. Or, it may have shown up on someone else’s list of “Devices near me” and they activated the beeping to find the AirTag.

If neither of those scenarios seems correct, try unpairing the AirTag from your account. From the Find My app, tap the AirTag’s name and swipe up to show all the device options. Tap Remove at the bottom of the screen and confirm. Then reconnect it like you did originally.

You can also try to reset the AirTag. Remove and replace the battery five times. It will chirp every time the battery is replaced, but the chirp will sound different when you replace the battery the fifth time. This is the “reset confirmation” chirp.

If that still doesn’t work to control the beeping, contact Apple—we’re stumped!

Why is my Apple AirTag not working?

It may need a new battery. If it seems too soon for the battery to be dead, the battery might have a bitter coating that’s causing it to not connect properly to the AirTag.

Double-check that the AirTag wasn’t accidentally removed from your device list too.

Finally, try resetting the AirTag following the instructions in the question above.

Best uses for Apple AirTags

What can you track with an AirTag?

Apple AirTags can track almost anything anywhere in the world. But there are a couple caveats:

  • AirTags aren’t super helpful for tracking items in motion.
  • Because they depend on Bluetooth signals from nearby devices, AirTags aren’t the most reliable way to find anything (or anyone) lost in a remote area.

Are Apple AirTags good for dogs and cats?

It depends. AirTags aren’t designed for tracking anything in motion. Maybe you could use an AirTag to find where your cat decided to hunker down, but you’d have a harder time pinpointing the average loose dog on their romp around the neighborhood.

AirTags also aren’t helpful for tracking animals across large farms or remote parks. If there are no other Apple devices nearby to pick up the AirTag’s Bluetooth signal, its location won’t update in the Find My app.

All in all, GPS devices are more reliable for tracking lost pets. See our recommended pet GPS trackers or learn more about how GPS works.

Apple AirTags vs. best GPS trackers

Apple AirTags have a longer battery life and way more affordable price tag than our favorite GPS trackers. But AirTags really have no other features besides location tracking. GPS trackers usually have geofencing alerts and scheduled location updates, whereas AirTags only show their location on demand.

Compare the best gps trackers

Amazon.com price as of post date. Read full disclaimer.Costs an additional 10/mo.

Amazon.com price as of post date. Read full disclaimer.

Can Apple AirTag track a child?

You can use Apple AirTag to track your child, but we don’t recommend it as an “everyday wear” tracker. It’s best as a supplement to a kids GPS tracker or for use at crowded events.

In an April 2021 interview, Apple’s VP of worldwide iPhone marketing Kaiann Drance recommended using an Apple Watch with Family Setup to track children instead of Apple AirTags. 3 Although Drance didn’t go into further detail about the pros and cons of using an AirTag for kids, our take is that Apple Watches are more reliable trackers for children because they use GPS.

With an AirTag, your child has to stay within range of devices in the Find My network and needs to stand still (or move reasonably slow) for an accurate location ping. Those limitations don’t exist with GPS—and you don’t want to butt heads with technology when it comes to protecting your child.

That said, there’s one scenario where AirTags provide better accuracy than a GPS tracker: crowded events. GPS trackers can locate someone within about 16 feet of their true location. 4 If your kid’s GPS tracker shows they’re right on top of you but you still can’t find them amongst a crowd of people, whip out the AirTag’s Precision Finding feature to learn exactly which direction to go and how far to walk to find your child.

To combat the issue of AirTags failing to track anything in motion, consider teaching your child to respond to the AirTag’s beeping sound. For example, it could mean “stop and wait” or “go to the family meeting place.”

That said, GPS trackers designed for kids have features that help in a true emergency, like SOS buttons and two-way audio. We recommend those purpose-made devices for keeping track of your child’s location on a daily basis.

One Precision Finding alternative, the Lynq tracker, retails for 400—14 times more than a simple 29 AirTag. Unless you’re heading out into a remote area, we don’t see any reason why you’d want the Lynq versus an AirTag.

Can Apple AirTag track a car?

Apple AirTags can track cars but with a few limitations.

For example, AirTags don’t work like the Domino’s delivery tracker—you won’t get to watch the route someone takes or know when they’re seconds away from your doorstep. But once the car reaches its destination and stops moving, you’ll see its location—assuming other devices in the Find My network are close enough to catch the AirTag’s Bluetooth signal.

The other potential issue is that an AirTag may get exposed to extreme temperatures in a car that reduce its performance or render it inoperable. Apple AirTag works between −4° to 140°F, so this shouldn’t be an issue except in the hottest and coldest regions.

airtag, battery, replaced, working

As with kids and pets, GPS devices are the way to go for tracking cars. Check out our recommended GPS vehicle trackers for more information.

Can Apple AirTag be used to track luggage?

Yes, Apple AirTag can be used to track luggage. You won’t be able to see its real-time progress down the luggage carousel, but you’ll know it safely made it to the correct airport.

AirTag Battery Replaced But Not Working? Here Are the Fixes

It is time to replace the battery of your AirTag if you got the notification on your iPhone for the battery replacement. The AirTag battery is a CR2032 cell that is readily available. I replaced my AirTag’s battery recently. It was a quick procedure; however, it didn’t work as expected.

The AirTag is supposed to make a beep sound immediately after you replace the battery. If you face any issues while replacing the AirTag battery, read below to fix the replaced battery not working on AirTag.

How Long Does AirTag Battery Last?

According to Apple, the AirTag battery is supposed to last one year. This may vary depending on the usage and how much you use it. The battery is an integrated battery that can be replaced easily without using any screwdriver or tools.

Don’t worry; you will get warning notifications to replace the AirTag’s battery. You get a couple of weeks to replace the battery after you get the low battery notifications.

How to Check AirTag Battery Charge

Using the Find My app, you can check the AirTag battery level with your iPhone. You do not need to worry about the battery charge, as your iPhone will warn you whenever the AirTag battery goes low unless you want to leave the tracker for longer.

  • Open Find My App on your iPhone.
  • Tap on the Items tab.
  • Select the AirTag you want to check the battery.

You see the battery charge percentage on the screen if the battery is low. Typically, you get around one-year of battery life for the AirTag.

Fix AirTag Battery Replaced But Not Working

The AirTag battery is supposed to be CR2032, a 3V coin battery, and replaced with a new battery. Well, you have to check the battery if you tried the new battery for AirTag and don’t see any response after replacing it. Below are some fixes for the new AirTag battery not working after replacement.

Use Battery Without Bitterant Coating

Most of the new coin-type batteries come with a bitterant coating. Check the battery for the sign of bitter coating. The bitter coating batteries taste bad, discourage swallowing, and the kids would likely spit it if they try it.

According to Apple, these batteries may not work with the AirTag.

airtag, battery, replaced, working

“CR2032 batteries with bitterant coatings might not work with AirTag or other battery-powered products, depending on the alignment of the coating in relation to the battery contacts.“

Suppose you already have bitterant-coated batteries with you. In that case, you can wipe out that coating with an alcohol wipe or similar cleaning material to remove the bitterant layer and try again. This time the AirTag will work with your new battery.

Just in case, if you are looking for a new battery without bitterant coating, you can try a few below from the Amazon store.

Clean Either Sides of the Battery

Apart from the bitter coating, some batteries may have an extra layer on either contact surface. If you ever find some plastic wrapping on the new AirTag battery, peel it off before putting it inside the AirTag. Also, the contact points for CR2032 batteries on AirTag come at the edges (as shown below).

At least clean up the areas that come in contact with the metal pins in the AirTag. This way, your new AirTag should work immediately if the battery has enough voltage.

Ensure the New Battery Has Enough Juice

No matter how new it is, some batteries may be faulty right out of the factory. Although the chances are pretty odd, your AirTag won’t work if you got a faulty one. Try out the two methods to check if the new AirTag battery has enough charge;

First, put it inside the AirTag, tighten the case and check the Find My app on your iPhone. If your AirTag shows up with a low battery warning, you may be using an old or faulty battery.

The second method is to use a multimeter or voltmeter to measure the battery voltage. The battery is supposed to have 3V of potential difference so if the voltmeter/multimeter shows a lower value, pick a different battery and use it for your AirTag.

Your AirTag should work if you checked all these on your battery and put it back on to the device. In case you still cannot get the AirTag back online, take it to your nearest Apple Service Provider and get it checked.

FAQ: AirTag Battery Not Working

Once your AirTag battery runs out of juice, you can replace it with a new battery and start using it right away. You do not need to reconnect your AirTag manually after replacing the battery, as the AirTag connects to your iPhone whenever the power is up.

Your AirTag stops working only when the battery is out of charge or when you remove the battery. You will also lose track of your AirTag location if somebody destroys the device.

Apple AirTags use CR2032 coin cell batteries that are not rechargeable. There is no charging port on the AirTag either. You should replace the AirTag batteries as soon as they run out, which will cost you a few cents.

The CR2032 batteries used in Apple AirTags costs less than a dollar per piece to buy from online or offline stores.

Disclaimer: MashTips is supported by its audience. When you purchase through links on our site, we may earn an affiliate commission at no extra cost to you.

Are Apple AirTags always on?

Quick Answer: Yes, Apple’s AirTags are always on. The only way to turn them off is to remove the battery.

Apple’s AirTag is designed to help users track their belongings whenever, wherever. But does that mean AirTags always remain on?

And if so, what does that mean for its battery?

Battery conservation concerns would, of course, compel users to seek ways to keep AirTags turned off except when they need to locate a possession.

However, AirTags cannot be turned off. They always remain on. As far as battery-draining reservations are concerned, AirTags have a robust battery that can last more than a year.

Battery management for AirTags: All you need to know

Now that you know that AirTags are always turned on, let’s dive into more stats about the battery and how to replace one.

How long does an AirTag battery last?

Short answer: The AirTag’s battery can last about a year. This approximation is based on the average usage per day.

  • One of the most significant factors is the frequency of usage. The more frequently you use your AirTag, the faster it will drain the battery.
  • Temperature and humidity can impact the battery life of your AirTag.
  • Using features like Precision Tracking sound events can affect the battery life of your AirTag.
  • The choice of replacement battery manufacturer also impacts the battery life of your AirTag. Opting for high-quality replacement batteries can ensure a longer lifespan for your AirTag.

You receive an alert when the battery of your Apple AirTag is running low letting you know that the battery needs to be replaced soon.

Alternatively, you can also check the battery level of your AirTag at any time by opening the Find My app on your iPhone or iPad and selecting the AirTag.

The app will display the current battery level of your AirTag and give you an idea of how much battery life is remaining.

How to conserve AirTag battery power

Short answer: Minimize how many times you ping the AirTag

If the AirTags are sitting idle and not being used, the battery can be removed to save unnecessary drain.

However, there is no need to take any additional measures to conserve battery in an AirTag being frequently used.

On top of that, you can minimize the use of battery-intensive features, such as Precision Finding, to help extend the battery life of your AirTag.

Finally, make sure to keep your AirTag up-to-date with the latest software updates from Apple, as these updates may include improvements to battery life.

How to replace the AirTag battery

The standard CR2032 lithium 3V coin battery can be purchased from any electronic store or online. Follow the steps given below to replace the AirTag battery:

Press down on the silver cap and turn it counterclockwise until it becomes loose

Lift the lid off and pop out the battery from the AirTag

Replace the old battery with the new one, making sure to face the positive side upwards

Listen for a chime sound to ensure the battery is seated correctly

Rotate the cover clockwise to assemble the AirTag again

And there you have it. You’ve now successfully replaced your AirTag battery.

While Apple makes it easy to replace batteries, it has specified that batteries with a Bitterant coating might not work with the AirTag.

Wrapping Up

The Apple AirTags are made for everyday use, and one of the best things about them is that they are always on. This is made possible by the coin-size battery in the AirTag that lasts almost a year. It can be easily replaced, thus providing users the flexibility to swap out the battery when it runs out, without needing to replace the entire device. This can save users both time and money in the long run.

Apple’s AirTags are a great way to keep up with your valuables. They work practically anywhere and work with Apple’s Find My app.

Quick Verdict: Apple’s AirTag is one of the best item trackers on the market and perfect for people in the Apple ecosystem.

KnowTechie is supported by its audience, so if you buy something through our links, we may get a small share of the sale.

Have any thoughts on this? Let us know down below in the Комментарии и мнения владельцев or carry the discussion over to our or

Editors’ Recommendations:

  • How do Apple’s AirTags work?
  • If you’re traveling without AirTags, you’re doing it wrong
  • Are Apple’s AirTags draining the battery life of nearby devices?
  • Does the Apple AirTag make noise?

Just a heads up, if you buy something through our links, we may get a small share of the sale. It’s one of the ways we keep the lights on here. Click here for more.

KnowTechie Giveaway: Enter to win an ANNKE outdoor security cam

For the next few weeks, we’re giving three lucky winners a chance to boost their home security with the ANNKE 5MP Outdoor security cam.

How to Factory Reset any Apple TV, HomePod, AirTag, Airpods, or Beats Headphones

You may need to reset your Apple devices to factory settings when troubleshooting, or when selling, giving away, or recycling devices. In this article, we look at resetting other Apple devices: the Apple TV, HomePod, AirTags, Airpods (all types), and Beats headphones. All these devices are linked to your Apple ID, and if you don’t reset the Apple TV and HomePod, someone could access your content and data.

Here’s how to reset these devices to factory settings. In another article, we look at how to reset any Mac, iPhone, iPad, iPod touch, or Apple Watch.

Reset any Apple TV to factory settings

Resetting an Apple TV is easy. Go to Settings System Reset. You have two options, and different Apple TV models use slightly different terminology. See this Apple support document to identify your Apple TV model.

For the Apple TV 4K or Apple TV HD:

  • Reset returns the device to its original factory settings.
  • Reset and Update resets the device and downloads the latest software.

For the Apple TV (3rd generation) or earlier:

  • Reset returns the device to its original factory settings.
  • Restore resets the device and downloads the latest software.

You may want to try one or the other when troubleshooting, though if your Apple TV is old, then the Reset option will only install the version of tvOS that was available when it was sold. You won’t need an internet connection for the basic reset option, though you will need internet access to download and install the latest software.

After you’ve reset an Apple TV, if you’re not setting it up again for yourself, it’s a good idea to check that it’s no longer linked to your Apple ID. Go to appleid.Apple.com, then click on Devices. If you still see your Apple TV, click it, then click Remove from Account.

airtag, battery, replaced, working

Reset any HomePod or HomePod mini to factory settings

You can reset any HomePod with the Home app on an iPhone, iPad, or Mac. Find your HomePod in the Home app, click on it, then click on the gear icon and scroll down to the bottom of the screen.

Click or tap Reset HomePod then click or tap Reset.

If you are unable to reset a HomePod with the Home app, you can do the following:

  • Unplug the HomePod for at least 10 seconds.
  • Plug it in again, and touch the top of the device and hold your finger there. When the white spinning light turns red, keep holding your finger on the top of the device.
  • Siri will say that your HomePod is about to reset; after you hear three beeps, you can lift your finger.
  • Remove the HomePod from the Home app.

The large HomePod has no way to connect it to a computer, but you can connect a HomePod mini to a Mac or PC with a USB-C cable. The HomePod mini will show up in the Finder sidebar (on a Mac) or in iTunes (on a Windows PC). Click it, then click Restore HomePod; this resets the device.

After you’ve reset a HomePod, if you’re not setting it up again for yourself, it’s a good idea to check that it’s no longer linked to your Apple ID. Go to appleid.Apple.com, then click on Devices. If you still see your HomePod, click it, then click Remove from Account.

Reset AirTags to factory settings

AirTags are a special case. You may have AirTags of your own, that you want to reset, or you may have found an AirTag. In the former case, you need to remove that AirTag from your Apple ID; in the latter, you need to do a full reset.

To remove an AirTag from your Apple ID:

  • In the Find My app, tap Items, then tap the AirTag you want to remove.
  • Swipe up and tap Remove Item from the bottom of the screen.

If you’ve found an AirTag, you can reset it, and it will no longer share its location with its owner. However, you won’t be able to associate it with your Apple ID and use it.

  • Press down on the stainless steel battery cover of the AirTag and rotate it counterclockwise until the cover opens.
  • Remove the cover and the battery, wait a few seconds, then replace the battery.
  • Press down on the battery until you hear a sound.
  • After you’ve heard the sound, repeat the process four more times, removing and replacing the battery, then pressing down on the battery until you hear a sound. You should hear a sound each time you press on the battery, for a total of five sounds. The fifth sound is different from the previous four: it indicates that the AirTag is now ready to pair.

Since you cannot reuse someone else’s AirTag that you find, assuming that you don’t know the owner and can’t return it to them, it’s best to dispose of it correctly. You can keep the battery, in case you have other AirTags (or a non-Smart watch, or other device that uses a CR2032 battery), but take the AirTag itself to a recycling collection point.

Reset Airpods to factory settings

To reset any Airpods (other than Airpods Max), do the following:

  • Go to Bluetooth settings on any device; since Airpods sync across all your Apple devices, you should see them on any Mac, iPhone, or iPad where you’re signed in with your Apple ID.
  • Tap or click the circled i (ⓘ) icon next to the Airpods, tap Forget this Device, then tap again to confirm.

To reset Airpods Max, press and hold the noise control button and the Digital Crown for 15 seconds until the LED flashes amber, then white.

For any Airpods, you can then re-pair them with a device, or sell them or give them away.

Reset Beats on-ear or over-ear headphones

If you have connection or sound problems with your Beats headphones, resetting them may help. This will also remove them from your Apple devices. For on-ear and over-ear models, such as the Solo Pro, any of the Solo Wireless or Studio Wireless models, you press and hold one or two buttons for ten seconds. This Apple support document specifies which buttons to use for each model.

Reset Beats in-ear earphones

For Beats earphone models, such as any Powerbeats, Beats Flex, BeatsX, or Beats Fit Pro, the procedure is similar to that for on-ear and over-ear headphones. You press and hold one or two buttons for ten seconds. This Apple support document specifies which buttons to use for each model.

Beats Studio Buds are similar to Airpods; to reset them, do the following:

  • Place both earbuds in the charging case. Leave the case open.
  • Press and hold the system button on top of the case, between the two earbuds, for 15 seconds, or until the LED indicator light flashes red and white.
  • Release the system button.

After you’ve reset your devices, you can sell them, give them away, or recycle them.

How can I learn more?

Each week on the Intego Mac Podcast, Intego’s Mac security experts discuss the latest Apple news, including security and privacy stories, and offer practical advice on getting the most out of your Apple devices. Be sure to follow the podcast to make sure you don’t miss any episodes.

You can also subscribe to our e-mail newsletter and keep an eye here on The Mac Security Blog for the latest Apple security and privacy news. And don’t forget to follow Intego on your favorite social media channels:

iPhone J.D.

iPhone J.D. is the oldest and largest website for lawyers using iPhones and iPads. iPhone J.D. is published by Jeff Richardson, an attorney in New Orleans, Louisiana. This site does not provide legal advice, and any opinions expressed on this site are solely those of the author and do not reflect the views of Jeff’s law firm, Adams and Reese LLP. iPhone J.D. is not associated with Apple, Inc.

Contact Me

[email protected] : @jeffrichardson (occasional updates from me on iPhone topics and sometimes other items) and @iphonejd (automatic notice of every new post on iPhone J.D.)

FTC Notice

Pursuant to 16 CFR Part 255, the Federal Trade Commission’s Guides Concerning the Use of Endorsements and Testimonials in Advertising, please note: (1) iPhone software and hardware developers routinely send me free versions of their products to review. I sometimes keep and continue to use these products that I did not pay for after posting my review, which might be considered a form of compensation for my review, but I do not believe that I let that color my review. (2) When I post links to product pages on certain stores, including but not limited to Amazon and the iTunes App Store, my links include a referral code so that when products are purchased after clicking on the link, I often receive a very small percentage of the sale. As an Amazon Associate I earn from qualifying purchases. Again, I do not believe that I let that color my review of products. (3) Some of the ads that run on this website are selected by others such as Amazon or Google. If one of these ads comes from the seller of a product reviewed on iPhone J.D., that is a coincidence and I do not believe that it colors my review of that product. Other ads are from paid advertisers, and if I discuss a product from a company that is a current advertiser, I will note that. (4) Some of the ads that run on this website are from monthly sponsors of iPhone J.D. When I discuss products from these companies on iPhone J.D., I do so to pass along information provided to me by the sponsor. Often, I will also provide my own commentary on the product, and while my goal is to be honest, please keep in mind that I was compensated to promote the product. If you have any questions about this, just send me an e-mail or post a comment on a specific product review.

July 18, 2022

AirTag battery replacement: avoid bitterant coatings

If you use an Apple AirTag, after about a year or so, your iPhone will alert you that the battery needs to be replaced. I own four AirTags that I purchased about 14 months ago, and two of them have alerted me that it is time to replace the battery. I replaced the battery in one of them shortly before taking a trip to Italy, only to discover that I bought the wrong battery. Learn from my mistake, and make sure that when you purchase a replacement CR2032 lithium 3V coin battery, do not purchase the version with a bitterant coating on it.

These batteries are small circles, and some children may be tempted to put them in their mouths and swallow them. Which is not good. A CR2032 battery with a bitterant coating tastes bitter when it reacts with saliva in a mouth, and the idea is that this encourages the child to immediately take the battery out of his or her mouth instead of swallowing it. This type of battery should give you clear indications on the packaging that a bitterant coating is being used. Here is the one that purchased from Amazon:

The idea of deterring improper use by children is a laudable goal, but apparently, the coating makes these batteries not work with certain electronic equipment. Including the AirTag, as Apple warns on its website.

I didn’t think about this warning when I purchased this set of batteries, so I installed one of these in the AirTag attached to my suitcase shortly before my vacation. I should have realized instantly that there was a problem because when you twist off the cover of an AirTag and replace the battery, before you even put the cover back on, the AirTag is supposed to make a sound to indicate that the new battery is connected. I didn’t hear that sound when I replaced this battery.

The battery with the coating did occasionally work with the AirTag. For example, when I arrived in Milan, Italy, the battery worked well enough for this AirTag to notice that it was in Milan. But that was the last place that the AirTag worked. Even after I returned home to the United States, the AirTag still incorrectly reported that it was in Milan, about 5,200 miles away:

The solution, of course, was to purchase a new set of CR2032 batteries that do not contain a bitterannt coating. When I installed the new battery, both in this AirTag and my other one that needed a new battery after my vacation ended, the AirTags immediately worked. As soon as I installed the battery, I heard the sound. And the AirTags correctly reported their location.

What annoys me about my mistake is that I should have known better. Almost exactly a year ago, I linked to a report that CR2032 batteries with a bitterant coating might not work with the AirTag. But a year later, I forgot about that. Hopefully, after reading this, you won’t forget when it is time for you to purchase a new battery.

Комментарии и мнения владельцев

If you use an Apple AirTag, after about a year or so, your iPhone will alert you that the battery needs to be replaced. I own four AirTags that I purchased about 14 months ago, and two of them have alerted me that it is time to replace the battery. I replaced the battery in one of them shortly before taking a trip to Italy, only to discover that I bought the wrong battery. Learn from my mistake, and make sure that when you purchase a replacement CR2032 lithium 3V coin battery, do not purchase the version with a bitterant coating on it.

These batteries are small circles, and some children may be tempted to put them in their mouths and swallow them. Which is not good. A CR2032 battery with a bitterant coating tastes bitter when it reacts with saliva in a mouth, and the idea is that this encourages the child to immediately take the battery out of his or her mouth instead of swallowing it. This type of battery should give you clear indications on the packaging that a bitterant coating is being used. Here is the one that purchased from Amazon:

The idea of deterring improper use by children is a laudable goal, but apparently, the coating makes these batteries not work with certain electronic equipment. Including the AirTag, as Apple warns on its website.

I didn’t think about this warning when I purchased this set of batteries, so I installed one of these in the AirTag attached to my suitcase shortly before my vacation. I should have realized instantly that there was a problem because when you twist off the cover of an AirTag and replace the battery, before you even put the cover back on, the AirTag is supposed to make a sound to indicate that the new battery is connected. I didn’t hear that sound when I replaced this battery.

The battery with the coating did occasionally work with the AirTag. For example, when I arrived in Milan, Italy, the battery worked well enough for this AirTag to notice that it was in Milan. But that was the last place that the AirTag worked. Even after I returned home to the United States, the AirTag still incorrectly reported that it was in Milan, about 5,200 miles away:

The solution, of course, was to purchase a new set of CR2032 batteries that do not contain a bitterannt coating. When I installed the new battery, both in this AirTag and my other one that needed a new battery after my vacation ended, the AirTags immediately worked. As soon as I installed the battery, I heard the sound. And the AirTags correctly reported their location.

What annoys me about my mistake is that I should have known better. Almost exactly a year ago, I linked to a report that CR2032 batteries with a bitterant coating might not work with the AirTag. But a year later, I forgot about that. Hopefully, after reading this, you won’t forget when it is time for you to purchase a new battery.

Leave a Comment