A123 Says Batteries for Fisker Have Potential Safety Issue

A123 Systems Inc., the maker of batteries for electric vehicles, said it found a “potential safety issue” in batteries it supplies to Fisker Automotive Inc.

A123, which also sells batteries to automakers such as General Motors Co. and Daimler AG, said hose clamps that are part of the internal cooling system of its batteries supplied to Fisker were “misaligned” and may cause coolant to leak. Such a leak could lead to an electrical short circuit, David Vieau, chief executive officer, wrote in a memo on Waltham, Massachusetts-based A123’s investor-relations website.