On Wednesday, Elevation Lab announced TimeCapsule, a new $20 battery case purported to extend Apple AirTag battery life from one year to 10 years. The product replaces the standard CR2032 coin cell battery in the Bluetooth-based location tracker with two AA batteries to provide extended power capacity.

The TimeCapsule case requires users to remove their AirTag’s original back plate and battery, then place the Apple device onto contact points inside the waterproof enclosure. The company recommends using Energizer Ultimate Lithium AA batteries, which it claims provide 14 times more power capacity than the stock coin cell battery configuration.

The CNC-machined aluminum case is aimed at users who place AirTags in vehicles, boats, or other applications where regular battery changes prove impractical. The company sells the TimeCapsule through its website and Amazon.

As related on the TimeCapsule’s product page, the add-on case reportedly emerged after its inventor lost camera equipment to theft, discovering their AirTag had died months earlier due to a depleted battery. This experience led to the development of a longer-lasting power solution for the tracking devices.