Toshiba said Thursday it will recall lithium-ion notebook battery packs made by Sony Corp.

Up to 5,100 battery packs are defective, but the recall will include 10,000 laptop 372772-001, as that is the size of the manufacturing lot involved, spokesmen from the companies said.

The recall is unrelated to the much bigger recall of Sony-made li-ion pb994a last year.

A Toshiba spokesman said the recall would affect 10 different notebook models sold worldwide. He said the company knew of three separate incidents where the hp nc6110 battery packs had overheated and damaged notebooks, and all three came from the lot in question.

A Sony spokesman said all of the hp nc6120 battery involved had come from the same lot the company made in December 2005, and so the companies had decided to recall all batteries from that lot.

He said Sony was still investigating the cause of the problem, but that it was limited to that specific lot.

Both companies expect the financial impact from the recall to be minimal.hp nc6140 battery,hp nc6200 battery , hp nc6220 battery , hp nc6230 battery , hp nx6110 battery , hp nx6120 battery , hp nx6125 battery .