Ford Assembly workers Anthony Chwalek and Tom Downs install a battery charger underneath a Ford Focus Electric vehicle at the Michigan Assembly Plant in Wayne, Michigan

 
Ford Assembly workers Anthony Chwalek and Tom Downs install a battery charger underneath a Ford Focus Electric vehicle at the Michigan Assembly Plant in Wayne, Michigan
Ford Assembly workers Anthony Chwalek (L ) and Tom Downs install a battery charger underneath a Ford Focus Electric vehicle at the Michigan Assembly Plant in Wayne, Michigan November 7, 2012. REUTERS/Rebecca Cook