Electric car battery vendor A123 Systems (AONE) drops 11.6% after warning 2011 revenue will be...

|About: A123 Systems, Inc. (AONEQ)|By:, SA News Editor

Electric car battery vendor A123 Systems (AONE) drops 11.6% after warning 2011 revenue will be in a range of $165M-$180M, well below prior guidance of $210M-$220M. A123 blames the shortfall on inventory reductions at customer Fisker Automotive, though the magnitude of the cut will likely raise questions about demand.