The automakers include McLaren Automotive, which awarded the contract for the MP4-12C, and a German OEM that will use the battery in a 2013 model year passenger vehicle.

A123’s Engine Start Battery is designed as a replacement for absorbent glass mat (AGM) and other lead acid batteries, providing a lighter-weight, longer-lasting solution for micro-hybrid functionality that enhances vehicle performance, improves fuel economy and lowers total cost of ownership.

The Engine Start Battery leverages the company’s automotive-class lithium ion cells to deliver economic, performance and environmental benefits for passenger and commercial vehicle applications.

A123 is a developer and manufacturer of advanced Nanophosphate lithium iron phosphate batteries and systems.