Highlights
- Step-by-step guide to check and replace your AirTag battery.
- Tips to extend AirTag battery life and ensure reliability.
- Everything you need to know about CR2032 batteries for AirTags.

If you’re using an AirTag to keep track of your belongings, it’s essential to know how to maintain its battery.
In this guide, I’ll walk you through everything you need to know about your AirTag’s battery, from its lifespan to how to replace it.
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Content Table
AirTag Battery Guide: Replace Your AirTag Battery Easily
What Battery Does an AirTag Use?
Your AirTag uses a CR2032 lithium 3V coin cell battery . These batteries are commonly found in devices like watches and key fobs. They’re widely available at electronics stores, pharmacies, and online.
Important Note: Some CR2032 batteries come with a bitterant coating to prevent children from swallowing them.
Apple advises that these coated batteries might not work properly with AirTags. If you encounter issues, try using a different brand or one without the coating.
How Long Does an AirTag Battery Last?
Under typical usage, your AirTag’s battery should last more than a year. However, several factors can influence this:
- Usage Frequency: Frequent use of features like “Play Sound” or “Precision Finding” can drain the battery faster.
- Environmental Conditions: Extreme temperatures can affect battery performance.
- Battery Quality: Not all CR2032 batteries are of the same quality. Opt for reputable brands like Panasonic, Energizer, or Duracell for reliable performance.

Image Credits:Mark ChanonUnsplash
How to Check Your AirTag’s Battery Status?
Apple doesn’t provide a specific battery percentage for AirTags. Instead, you’ll receive a notification when the battery is low. To check:
- Open the Find My app on your iPhone.
- Tap the Items tab.
- Select your AirTag.
- If the battery is low, you’ll see a “Low Battery” message.
How to Replace Your AirTag Battery?
Replacing your AirTag’s battery is straightforward:
- Press down on the polished stainless steel cover of the AirTag.
- Rotate it counterclockwise until it stops.
- Remove the old battery.
- Insert the new CR2032 battery with the positive side (+) facing up.
- Align the three tabs on the cover with the slots on the AirTag.
- Press the cover down and rotate it clockwise until it clicks into place.
After replacing the battery, your AirTag will emit a sound to confirm it’s working.
Tips for Maintaining Your AirTag Battery
- Use Quality Batteries: Opt for reputable brands to ensure longevity.
- Avoid Extreme Temperatures: Keep your AirTag in environments with moderate temperatures.
- Regular Checks: Periodically check the battery status to avoid unexpected failures.
Maintaining your AirTag’s battery is crucial for it to function correctly. By following the steps above, you can ensure your AirTag remains powered and reliable. Remember to use quality batteries and monitor the battery status regularly.
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