Using a Nokia smartphone that runs on the BL-5C battery? The Finnish manufacturer has an important message for you:

Nokia has identified that in very rare cases the affected batteries could potentially experience over heating initiated by a short circuit while charging, causing the battery to dislodge. Nokia is working closely with relevant local authorities to investigate this situation.

Nokia has several suppliers for BL-5C batteries that have collectively produced more than 300 million BL-5C batteries. This advisory applies only to the 46 million batteries manufactured by Matsushita between December 2005 and November 2006. There have been approximately 100 incidents of over heating reported globally. No serious injuries or property damage have been reported.

Nokia and Matsushita are offering to replace defective batteries for free, an offer owners should take up on. At the very least, the new substitute batteries will be able to store more power than the ones they'll replace.

Great way to retain customer goodwill Nokia!