MARKETS PRODUCTS TECHNOLOGY ABOUT CAREERS Energy Storage for Commercial Vehicles Product Development from Concept to Commercialization A123 offers fully-integrated battery systems tailored to EV, PHEV and HEV applications, along with a design and integration team that can develop and optimize systems to your unique specifications. Our technology is a leader in the commercial vehicle market and globally powers upwards of 25,000 buses. Electronics Cooling Battery Reset RAPID CHARGE Capability HIGH ABUSE Tolerance Put to the Test in Real World Conditions We put reliable products into commercial vehicles so that operators can keep them on the road longer, with fewer service events. Our lithium-ion battery systems are designed to meet performance requirements with the most rigorous duty cycles and since 2008, have proven themselves on the road across hundreds of millions of miles driven. Modules All of our advanced battery modules are designed and manufactured with common components that serve as building blocks for fully validated systems. These efficient designs meet heavy-duty shock and vibration criteria, charge rapidly, provide high levels of abuse tolerance and are readily configured to commercial applications. AUTOMOTIVE Markets Products Technology ABOUT Management Locations CAREERS Apply Now Legal Privacy Policy Contact © 2021 A123 Systems LLC

MARKETS PRODUCTS TECHNOLOGY ABOUT CAREERS Our Story, Leadership, and Locations OVERVIEW MANAGEMENT LOCATIONS As a worldwide leader in complete lithium-ion energy storage solutions that offer high power, excellent safety and outstanding life, we provide our customers with quality products, when and where they need them. But there’s more to our story than that… 2017 A123 launches first 48V Ultraphosphate™ battery out of Hangzhou, China facility 2016 NMC based products become a larger share of our business reflecting the market shift towards electric vehicles 2015 New Ultraphosphate technology and advance 3rd generation starter battery is developed 2014 Divested grid storage business to focus on transportation and commercial 2013 A123 takes over all battery operations for Wanxiang Group 2011 First generation 12V starter battery 2010 North American operations expanded with facility openings in Michigan 2008 First production hybrid bus program 2007 First pouch cell production begins 2004 First cylindrical cell production begins 2001 A123’s proprietary Nanophosphate technology is built on novel nanoscale materials initially developed at the Massachusetts Institute of Technology (MIT) Sustainable Practices in Battery Technology A123 products deliver excellent energy density providing more driving range per charge. Our advanced technology allows vehicle manufacturers to engineer powertrain advancements that are environmentally conscious. These advances help reduce emissions, provide better fuel economy and start to reduce our reliance on oil. Contact us to learn more. AUTOMOTIVE Markets Products Technology ABOUT Management Locations CAREERS Apply Now Legal Privacy Policy Contact © 2021 A123 Systems LLC