Apple will recall 1.8 million lithium-ion notebook PC batteries after nine overheated, the second major recall in the past 10 days involving battery cells made by Sony. Just last week, No. 1 PC maker Dell recalled 4.1 million lithium-ion batteries, also with Sony-made cells. Sony said the two recalls would cost it between 20 billion yen and 30 billion yen, or $172 million to $258 million.
The recall tally involving Sony batteries has now reached nearly 6 million and highlights the potential hazards of lithium-ion batteries, which also power a wide range of portable devices including music players and cellphones. Roger Kay, president of market researcher Endpoint Technologies Associates, said the affected Sony battery cells might overheat or catch fire when tiny metal fragments, remnants of the manufacturing process, break loose and cause short-circuits. Dell also pointed to "contamination" in the Sony battery cells as the cause of its problems.