Apple AirTag Battery & Tracking Guide (2025): Setup, Battery Life, Replacement & FAQs

The Apple AirTag is a small, powerful tracking device designed to help you locate everyday items like your keys, backpack, luggage, or wallet. Whether you’re traveling, commuting, or managing daily routines, AirTags offer peace of mind through precise, seamless tracking.

In this updated 2025 guide, we’ll cover everything you need to know about AirTag battery life, how it works, how to set it up, and how to replace its battery—plus answers to the most common AirTag questions.

What Is an Apple AirTag?

An Apple AirTag is a coin-sized tracking device that uses Bluetooth Low Energy (BLE) and Apple’s vast Find My network to help you track lost items.

Launched in 2021, AirTags remain a go-to solution for:

• Tracking personal belongings
• Locating lost luggage or pets
• Managing valuables on-the-go
• Receiving real-time alerts when items are misplaced

The AirTag pairs with your iPhone, iPad, or Mac using the Find My app, letting you see its last known location on a map or guide you to it with Precision Finding.

How Do AirTags Work?

AirTags do not use GPS. Instead, they rely on a mix of Apple technologies:

1. Bluetooth

AirTags emit a Bluetooth signal detectable by nearby Apple devices. These devices then securely relay the location to your iCloud account, visible in the Find My app.

2. Find My Network

Apple’s Find My network includes over 2 billion devices worldwide, creating an extensive tracking mesh. When your AirTag is out of range, the nearest Apple device can anonymously ping its location.

3. Ultra-Wideband (UWB)

If you have an iPhone 11 or later, the U1 chip enables Precision Finding, guiding you with directional arrows and haptics to your AirTag’s exact location.

What Kind of Battery Do AirTags Use?

Each AirTag uses a CR2032 coin-cell battery, a common and affordable battery type. It powers the device for up to 12 months before needing replacement.

⚠️ Tip: Avoid CR2032 batteries with a bitterant coating (child-safe coating) as they may interfere with the battery contacts and prevent the AirTag from working properly.

How Long Does the AirTag Battery Last?

• Average battery life: Up to 1 year
• Battery type: CR2032 3V lithium coin battery
• User-replaceable: Yes

You’ll receive a low battery notification via the Find My app when it’s time to replace it.

How to Replace an AirTag Battery (Step-by-Step)

Replacing the battery is easy. Follow these steps:

1. Flip the AirTag so the Apple logo is facing down.
2. Press down on the stainless-steel back and rotate it counterclockwise.
3. Remove the old CR2032 battery.
4. Insert a new battery with the positive (+) side up.
5. Replace the cover and rotate it clockwise until it clicks.

The AirTag will play a confirmation sound when the battery is successfully connected.

Setting Up Your Apple AirTag

1. Bring the AirTag near your iPhone.
2. A setup screen appears – tap Connect.
3. Name your AirTag (e.g., “Keys” or “Wallet”).
4. Assign it to your Apple ID.

Done! You can now track it using the Find My app.

Using AirTag Features

1. Precision Finding

Only available with U1-enabled iPhones (iPhone 11 or newer), this feature provides:

• On-screen arrows
• Distance indicators
• Haptic feedback

2. Play Sound

If your AirTag is nearby but out of sight (under a couch, in a bag, etc.), you can tap Play Sound to locate it audibly.

3. Lost Mode

Enable Lost Mode to:

• Lock the AirTag to your Apple ID
• Allow others to contact you if they find your lost item
• Receive a notification when it’s detected by another Apple device

AirTag Security & Privacy

Apple prioritizes privacy with AirTags:

• Location data is end-to-end encrypted
• Your AirTag can’t be used to track people secretly (anti-stalking alerts built in)
• Only you can see your AirTag’s location

Common Apple AirTag FAQs

❓ Can AirTag batteries be replaced?

Yes, AirTags use a user-replaceable CR2032 battery that typically lasts one year.

❓ Do AirTags work with Android?

Partially. Android phones can tap an AirTag using NFC to view Lost Mode info, but full tracking features require an Apple device.

❓ Can I track my pet with an AirTag?

Yes. Many pet owners attach AirTags to collars. Just note that AirTags are not real-time GPS trackers and rely on nearby Apple devices for updates.

❓ How many AirTags can I use?

You can pair up to 16 AirTags per Apple ID.

❓ Do AirTags work internationally?

Yes. AirTags function anywhere the Find My network is available. That includes most countries with a strong Apple user base.

❓ What happens if someone finds my AirTag?

If Lost Mode is on, they can tap it with an NFC-enabled smartphone and see your contact information (if provided). They can then contact you to return the item.

❓ Can I share my AirTag location with family?

Yes. As of iOS 17, you can share your AirTag with up to 5 people via Family Sharing.

❓ Will I get alerts if an unknown AirTag is traveling with me?

Yes. Apple will notify you if an AirTag not registered to your Apple ID is detected moving with you for a prolonged period.

❓ Are AirTags waterproof?

AirTags are splash, water, and dust resistant (IP67 rating). They can survive brief water exposure, but aren’t designed for prolonged submersion.

❓ Can I use an AirTag to track my car?

Yes, but with limitations. Since AirTags rely on nearby Apple devices, tracking might not update in remote areas without iPhones.

Final Thoughts

Apple AirTags are compact, reliable, and highly effective for keeping track of your important items. Whether you’re using it for keys, bags, pets, or travel gear, it’s an investment in peace of mind.

Just don’t forget: the CR2032 battery is key to its performance. Replacing it on time ensures continuous tracking, alerts, and protection.

Shop Smart. Stay Connected.

Explore more Apple accessories, Bluetooth trackers, and tech tips at www.xyultra.com. We help you make smart decisions with clear, expert-backed information.