Changing the AirTag battery: This is how it works!

Recently my iPhone reported to me that the battery of the AirTag, which is lying around here for testing purposes, was slowly running out and should be replaced. I immediately saw this as an ideal opportunity to write a blog post on this topic. So if you are currently looking for instructions on how to change the AirTag battery, then today is your lucky day. Below I will not only show you how I proceeded. Of course, I'll also link you to Apple's official support document.

If the AirTag battery is almost empty, the Apple tracker sends a push notification to the iPhone.
If the AirTag battery is almost empty, the Apple tracker sends a push notification to the iPhone.

Where can I see the battery level of my AirTag?

If the AirTag does not automatically send an iPhone notification to indicate that the battery needs to be changed, you can also check the charge level manually. To do this, simply open it Where is? app on iPhone, iPad, Mac or via the corresponding area on the iCloud website. There you then select the “Objects” area and the relevant AirTag. If the battery is almost discharged, this is indicated by a corresponding symbol. If the battery does not need to be changed yet, no battery symbol is shown.

In the Objects tab of Where is? In the app you will find a corresponding symbol as a warning if the AirTag battery is low.
In the Objects tab of Where is? In the app you will find a corresponding symbol as a warning if the AirTag battery is low.

Changing the battery on the Apple AirTag: step by step

If the AirTag reports to the iPhone, it will actually be accompanied by more than just a short push notification. You can also see animated instructions for replacing the battery in the message. But if you ignored them or wiped them away because you had other things to do, then you can get the short version here to catch up on:

  1. Press the stainless steel cover down and turn it counterclockwise
  2. Remove said cover and remove the battery from the AirTag
  3. Insert a new battery with the plus (+) side facing up - when you push it in, a tone will play to indicate that the battery has been inserted correctly
  4. Replace the cover so that its tabs land in the recesses in the housing
  5. Then press the cover in and turn it clockwise until it can no longer be turned (a sound may be played again)
Things aren't that complicated. Open the lid, take out the old power storage, insert the new one and put the lid back on.
Things aren't that complicated. Open the lid, take out the old power storage, insert the new one and put the lid back on.

Apple instructions: Support document

What kind of battery goes into the Apple AirTag?

For the Apple AirTag you need a CR2032 lithium button cell with 3V. In addition to electronics stores, you can usually also find these in drugstores, discount stores and supermarkets. It is a commonly used type of button cell - it is used in, among other things, watches, digital thermometers and hygrometers, as well as in other small devices. You can find a whole post about it here in the blog: Button cell CR2032 - The differences to CR2025 and CR2016 batteries. We also discussed the AirTag battery in detail three years ago: What battery goes into an Apple AirTag?

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How do I check if the AirTag works with the new battery?

To check whether the newly inserted battery is full and the AirTag is working as usual, use the Where is? App or the corresponding area on the iCloud website. Here you select the objects area and the AirTag in question again. If it is shown as active and you don't see an empty battery symbol next to it, then everything is fine. You can also play a sound to test it. If the tracker responds to this input with its melody, then you can be sure that it will work as needed again.

In the Where is? With the app you can have devices that are connected to the same Apple ID play a sound. In addition to Mac, iPhone, iPad and Watch, this also applies to the AirTag.
In the Where is? With the app you can have devices that are connected to the same Apple ID play a sound. In addition to Mac, iPhone, iPad and Watch, this also applies to the AirTag.

More posts about the Apple AirTag

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In the Sir Apfelot Blog you will find advice, instructions and reviews on Apple products such as the iPhone, iPad, Apple Watch, AirPods, iMac, Mac Pro, Mac Mini and Mac Studio.