On Wednesday, a startup 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, created by Elevation Lab, requires users to remove their AirTag's original back plate and battery, then place the Apple device onto contact points inside the waterproof enclosure.