Elevation Lab has released an accessory For Apple AirTag which extends battery life up to 10 years And makes it waterproof. Time Capsule It's essentially a case that holds your AirTag and two AA batteries. You don't have to open the AirTag and fiddle with it—you only need to remove the back panel and the coin cell battery before attaching it to the case. As you can see, this will make your tracking device much larger and heavier, making it ideal for use with large objects such as vehicles and large suitcases.
TimeCapsule can make it easier to manage multiple AirTags, Elevation Lab said in its announcement. You will no longer have to replace batteries every year just to make sure they will work properly if you lose your items. However, the batteries you use will determine how long it will be before you have to unscrew the case and replace them.
Elevation Lab recommends Energizer Ultimate lithium batteries with a voltage of 1.5V each and a capacity of over 3,000mAh, so they can power the AirTag for up to ten years. Other AA batteries will work with this case, but they may not be as effective depending on their specifications. The amount you spend on the entire setup will depend on the batteries you choose, but the case itself will set you back $20.