Adam Gleason, Arctech Charge, speaks about the capabilities of a mobile battery management system during a demonstration at Hill Air Force Base, Utah, Dec. 15. 2023. The Arctech Charge battery charging, maintenance, and management system can be tailored to fit any battery. The self-contained mobile unit was built to support electric vertical takeoff and landing (eVTOL) aircraft development for the Air Force’s Agility Prime program. (U.S. Air Force photo by R. Nial Bradshaw)