Apple AirTag batteries typically last about one year under normal or typical usage conditions. This estimate is based on the use of a CR2032 lithium 3V coin cell battery, which is user-replaceable

. Key points about AirTag battery life:

• Typical lifespan: Around one year, as stated by Apple and confirmed by user reports

• Battery type: CR2032 lithium 3V coin cell battery, commonly used in watches and key fobs

• Factors affecting battery life:
  • Frequency of use: More frequent location checks or notifications drain the battery faster

* Environmental conditions: Extreme temperatures (hot or cold) can reduce battery efficiency

* Signal interference and distance from Apple devices can cause higher power consumption

• Real-world variation: Some users report battery life close to two years when using high-quality batteries and moderate usage, while cheaper batteries or heavy use can reduce life to a few months

• Battery replacement: When the battery runs low, the AirTag sends a notification, and the battery can be easily replaced with a compatible CR2032 battery

In summary, expect about one year of battery life per CR2032 battery in an AirTag, with actual duration varying based on usage and conditions. High- quality batteries and moderate use can extend this to nearly two years in some cases.