HP is expanding a voluntary recall of batteries from notebooks manufactured from July 2007 through May 2008. The recall began back in May of 2009, with another one taking place in May of 2010. This isn’t a general recall of the notebooks themselves, just the batteries that power them. Five percent of the affected batteries may have problems, and HP will be providing replacements of the batteries. Check out this link to find out if your HP notebook is affected.