MARKETS PRODUCTS TECHNOLOGY ABOUT CAREERS UltraPhos­phate™ technology Power from Innovation Innovative UltraPhosphate technology drives the advanced chemistry behind our lithium ion batteries and the result is unrivaled low voltage hybrid power and performance. The A123 development team optimized every component of the cell to create a lithium-ion battery with cold cranking performance that exceeds lead acid in 12V applications, while eliminating the need for the battery cooling systems necessary for most 48V applications. Employing an advanced chemistry design and custom developed powder manufacturing processes, A123’s Ultraphosphate technology is able to bring next generation low voltage products world-class charge acceptance and increased cycle life. INCREASE Life Cycle WORLD-CLASS Charge Acceptance UNRIVALED Cold-Cranking Performance 12V Starter Battery Advanced chemistry and system design gives our 12V starter battery a competitive advantage in cranking power, charge acceptance and weight reduction. LEARN MORE 48V Battery High charge acceptance makes our 48V battery a powerful tool in efforts to burn less fuel and produce fewer emissions through regenerative braking. LEARN MORE AUTOMOTIVE Markets Products Technology ABOUT Management Locations CAREERS Apply Now Legal Privacy Policy Contact © 2021 A123 Systems LLC

MARKETS PRODUCTS TECHNOLOGY ABOUT CAREERS Ultra-high Power Cell Technology In the ultimate test of power and performance, A123 dominates the world of motorsports with both high-power and high-energy cell technologies that consistently perform at world class levels. We first established leadership in energy recovery systems of Formula One racing beginning with the 2011 season and have been dominating the podium ever since. In 2014 A123 also became a Featured Technical Partner to Porsche’s 919 Hybrid in the FIA World Endurance Championship Series. ENERGY RECOVERY SYSTEM LEADER Formula One Racing FEATURED TECHNICAL PARTNER of Porsche Many of the cars on the Formula One starting grid now rely on our cell technology to energize their ultra-high power hybrid functionality. Charging to Victory Together, Porsche and A123 have pushed the Porsche 919 to the limits of hybrid functionality allowed by the FIA regulations, and enjoyed some big wins in one of the most challenging endurance races in the world. Powered by our custom batteries, the Porsche 919 hybrid system managed more than 850kWh of energy during the 24 Hours of Le Mans to become the most fuel efficient champion in the history of the race. World-class Performance We’re shaping the future of motorsports with battery chemistry and cell design technologies that can be tailored to reach design targets previously regarded as impossible. In the world of elite racing, A123 has consistently demonstrated an ability to outpace the competition at every turn. AUTOMOTIVE Markets Products Technology ABOUT Management Locations CAREERS Apply Now Legal Privacy Policy Contact © 2021 A123 Systems LLC