Nokia has released an advisory concerning their BL-5C battery. They are issuing a recall on batteries of this type which were manufactured from December 2005 to November 2006. According to the press release, overheating was observed while the phone was being charge. There have been 100 reports globally concerning this issue which has prompted Nokia to recall the battery. Fortunately, no serious injury or damage to property have been reported. If your not sure if your battery falls under this category, contact the Nokia call center or visit the website for more details.