I suspect that many of you have already seen on the news about Dell recalling over 4 million of their laptop batteries. It seems that these came out of the same Sony manufacturing plant that supplies the likes of Lenovo, HP and Apple. Links to specific pages at the end of this article.
Apple have now recalled 1.8 million batteries from certain 12-inch iBook G4, 12-inch PowerBook G4 and 15-inch PowerBook G4 laptops. The procedure is simple, fill in a form and Apple will send you a replacement battery in about 4-6 weeks, you then use the same packaging and prepaid label to ship your old battery back.
Dell and HP offer similar replacement procedures, though I could not test the exact procedure as I did not have the relevant details to enter on their website. I could not find anything on the Lenovo website about this.
Link to Apple Battery Recall.
Link to HP Battery Recall.
Link to Dell Battery Recall.