Can I use a rechargeable battery for my AirTag

Battery Type

- Standard Battery: AirTags are designed to use a CR2032 lithium coin battery, which typically lasts about one year under normal usage conditions[3][5]. This battery provides a voltage of 3V, which is essential for the device's operation.

- Rechargeable Alternatives: Some users have experimented with LIR2032 rechargeable batteries. While these can technically fit into the AirTag, they operate at a higher voltage (around 3.6V) and have a significantly lower capacity (mAh), meaning they need to be recharged more frequently—potentially every couple of months[1][4].

Performance Considerations

- Voltage Compatibility: The AirTag requires a battery that provides a stable voltage in the range of 2-3V. Using a battery that exceeds this voltage may lead to device malfunction or damage[1].

- Capacity and Lifespan: Rechargeable batteries like the LIR2032 generally have lower capacity compared to CR2032 batteries, resulting in more frequent replacements or recharges. Users report that while LIR2032 batteries can work, they may not last as long as standard CR2032 batteries and require more maintenance[1][4].

Conclusion

In summary, while it is possible to use a rechargeable LIR2032 battery in an AirTag, it is not advisable due to potential voltage issues and reduced lifespan compared to the recommended CR2032 batteries. For optimal performance and convenience, sticking with CR2032 batteries is the best choice for AirTag users[2][3][6].