In 2006 more than 10 million Sony-manufacturered notebook batteries were recalled — an error that cost Sony more than $444 million dollars to correct. Lenovo has issued a recall on 9-cell lithium-ion batteries. Lenovo insiders stress to DailyTech that this recall is not due to the same conditions as the Sony battery recall from 2006; the batteries are of Sanyo manufacture and the hazard occurs when the battery has undergone considerable abuse. “Lenovo has confirmed that notebook computers containing the recalled battery packs may overheat, posing a potential safety hazard to users if the battery pack experiences a strong external impact,” the company stated in a press release. All affected batteries will be replaced free of charge. Lenovo suggests removing the battery from defective units and using the AC adaptor until a replacement has arrived.