Your AirTag’s battery is a silent hero, working tirelessly for up to a year to keep track of your keys, bags, or pets. But when it finally runs out, your iPhone will nudge you with a low-battery alert—or you can check manually in the Find My app. Before you panic and buy a new AirTag, here’s the good news: replacing the battery takes less than 2 minutes, costs under $5, and requires zero technical skills. Let’s get your tracker back in action!
Table of Contents
What Battery Does an AirTag Use?
AirTags rely on a CR2032 lithium coin battery—the same type found in calculators, car key fobs, and fitness trackers. But there’s a twist: Apple strongly recommends using a bitter-coated AirTag battery to deter curious kids or pets from swallowing it (they taste awful!).
Pro Tip for 2025:
- Buy Duracell, Energizer, or Panasonic CR2032 batteries labeled “bitter coating.”
- Avoid cheap generic brands—some coatings can block battery contact. If your AirTag doesn’t recognize the new AirTag battery, lightly sand the sides with 220-grit sandpaper to remove excess coating.
Preparing to Replace Your AirTag Battery
No tools are needed! Just:
- A CR2032 bitterant-coated battery (see recommendations above).
- A clean, dry workspace (keep pets/kids away—batteries are choking hazards).
Safety First:
- Never force the AirTag cover open—it twists off smoothly when pressed correctly.
- Store old batteries out of reach and recycle them at electronics stores like Best Buy.
Step-by-Step Guide to Replace Your AirTag Battery
Step 1: Remove the Metal Cover
- Flip the AirTag so the stainless steel side faces up.
- Place two fingers on the Apple logo, press down firmly, and twist counterclockwise until the cover unlocks.
Step 2: Swap the Battery
- Pop out the old AirTag battery CR2032 (use a fingernail or a blunt tool).
- Insert the new AirTag battery with the “+” side facing up.
- Listen for a beep—this confirms the AirTag recognizes the fresh battery.
Step 3: Reattach the Cover
- Align the cover’s three tabs with the AirTag’s slots.
- Press down and twist clockwise until it clicks into place.
How to Verify the Replacement Worked
Open the Find My app, select your AirTag, and check if the low-battery warning is gone. If not:
- Reopen the cover and reseat the AirTag battery.
- Ensure the “+” side is facing up.
- Try a different CR2032 battery (some third-party brands have sizing quirks).
Pro Tips for 2025 AirTag Users
- Waterproofing Matters: After replacing the cover, ensure it’s tightly sealed to maintain the AirTag’s IP67 water resistance.
- Battery Storage: Keep spare CR2032s in a cool, dry place (heat drains lithium batteries faster).
- Recycle Responsibly: Drop old batteries at eco-friendly hubs like Staples or Home Depot.
Conclusion
Replacing an AirTag battery is simpler than threading a needle—and far cheaper than buying a new $29 tracker. With the correct CR2032 battery and our foolproof guide, you’ll keep your AirTag running smoothly for years.
