The voluntary recall applies to certain Sony 2.15Ah lithium-ion cell batteries made in Japan and sold around the world in laptops made by Hewlett-Packard Co., Dell Inc. and Toshiba Corp.
Some incidents involved smoke or flames, according to Sony. Twenty-one of the reports claimed minor property damage, and small burns were reported in four cases.
Sony blamed two factors for the defects: adjustments on its manufacturing line from October 2004 to June 2005, which may have affected the quality of cells in certain production lots; and a possible flaw in the metal foil for electrodes.
The company said no reports have been filed for batteries made after 2006, and noted that the recalled units are a small fraction of the more than 260 million it has shipped over six years.
This also pales in comparison to the recall of nearly 10 million of a different model of Sony batteries in 2006 and 2007, which affected almost every major PC manufacturer, including Dell Inc. and Apple Inc.