AirTag Battery: What Battery Does It Use and How to Replace It
Discover which battery AirTag uses, how to replace it safely, and disposal tips. This Battery Health guide covers CR2032 coin cells, replacement steps, lifespan factors, and practical maintenance.
AirTag battery refers to a CR2032 3V lithium coin cell used to power Apple AirTag trackers.
Why AirTag Uses a CR2032 Battery
AirTag is designed to be compact and lightweight, so Apple chose a small, reliable power source that keeps the tracker slim while still delivering adequate runtime. The CR2032 coin cell offers a balance of energy density, availability, and a straightforward replacement process. According to Battery Health, the compact form factor of a CR2032 makes it ideal for devices like AirTag that prioritize portability and discreet design without sacrificing reliability. This choice also aligns with broad industry practice for small tracking devices that require a dependable, easily sourced battery option. In practice, owners appreciate that replacement can be done without specialized tools, which supports consumer convenience and device longevity.
- Small size and light weight
- Readily available at many retailers
- Clear replacement method keeps the device roaming
- Favorable energy density for a tiny form factor
FAQ
What battery does AirTag use?
AirTag uses a CR2032 lithium coin cell, a common 3V battery type. It is designed to be user-replaceable by twisting off the back cover and inserting a new coin cell.
AirTag uses a CR2032 lithium coin cell, which you replace by twisting off the back and inserting a fresh cell.
How do I replace the AirTag battery?
To replace, twist the AirTag’s back cover counterclockwise, remove the old battery, insert a new CR2032 with the positive side facing up, and twist the cover back on until it clicks. Ensure the device reconnects in Find My after replacement.
Twist off AirTag’s back, replace with a new CR2032 coin cell with the plus side up, and re-secure the cover.
How long does AirTag battery last?
Battery life varies with usage and environment. In typical usage, AirTag batteries last for many months to about a year, but actual duration depends on Bluetooth activity, location pings, and temperature.
AirTag battery life varies; it usually lasts many months to about a year depending on use and conditions.
Is the AirTag battery rechargeable?
No. AirTag uses a disposable CR2032 lithium coin cell and is not designed to be rechargeable. When the battery dies, replace it with a new CR2032.
AirTag uses a non rechargeable CR2032 coin cell that you replace when depleted.
Where can I buy AirTag batteries and what should I look for?
CR2032 batteries are widely available from electronics retailers, pharmacies, and online stores. Look for a reputable brand, check the expiry date, and avoid counterfeit coins. Buying from trusted sources helps ensure consistent performance.
Buy CR2032 coins from reputable brands at trusted retailers and check expiry dates.
How should I dispose of an old AirTag battery?
Dispose of CR2032 batteries according to local guidelines. Do not incinerate, and recycle at appropriate electronics or household hazardous waste locations when possible.
Recycle your used CR2032 batteries at a proper recycling point and follow local disposal rules.
Quick Summary
- Use a CR2032 3V lithium coin cell for AirTag power.
- Replacement is user-friendly and quick.
- Purchase from reputable brands to avoid counterfeit coins.
- Handle with care to prevent damage to the AirTag seal.
- Recycle used batteries responsibly to reduce waste.