The battery problem keeps exploding.

Lenovo will recall 526,000 notebook batteries due to faulty batteries, the company said on Thursday.

The batteries were designed by Lenovo, but Sony produced the lithium ion cell. The recall impacts notebooks produced from Feburary 2005 to September 2006, according to Lenovo spokesman Ray Gorman. For now, the recall will only impact about 5 percent to 10 percent of notebooks produced by Lenovo, Gorman said, but the company recommends that all customers go to the Lenovo site and check to see if they have one of the faulty batteries.

Separately, Sony announced that it will initiate its own recall program involving battery packs using its battery cell technology. Details will be announced later in cooperation with the U.S. Consumer Products Safety Commission, but the program will involve the replacement of affected battery packs "in order to address concern related to recent overheating incidents," Sony said in a press release.

With the recall, Lenovo becomes the fourth major PC manufacturer to haul batteries back due to safety problems. Dell said that it would recall 4.1 million notebook batteries in August, and Apple Computer subsequently announced it had to recall 1.8 million notebook batteries. Toshiba, meanwhile, said this month that it would recall 340,000 batteries.

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