Sublime

10-year AirTag battery case

TimeCapsule is a clever solution for extending AirTag battery life from 1 year to 10 years. Just remove the standard coin battery and put the Airtag in this waterproof case that uses two AA batteries. It's valuable for tracking high-value items like camera gear or items in long-term storage. Around $20. — MF

A research team has successfully developed dual-site radioactive isotope dye-sensitized betavoltaic cells, a next-generation semi-permanent battery that does not require recharging.