Mars Rovers Using Air Force Lab Developed Batteries SpaceDaily

As the Mars exploration rovers “Spirit” and “Opportunity” race toward the Red Planet, part of the Air Force Research Laboratory is soaring with them. The two rovers, expected to touch down and explore opposite sides of Mars in early 2004, are powered by rechargeable lithium-ion batteries researched and developed by experts at the laboratory’s propulsion directorate. Spirit and Opportunity will act as robot geologists while on the surface of Mars.