General Motors is getting back into the battery business. It had been a two horse race between Korea’s LG and US startup A123 systems to win the supply contract for the Chevrolet Volt. LG Chem and Compact Power Inc. were one team and A123 Systems/Continental the second team selected from an initial field of 27 applicants to compete against one another to build the Chevy Volt’s battery packs. GM announced in September 2008 that it had chosen a battery supplier, but would not reveal which company that was. But has either team actually won?