Nokia has released a product advisory bulletin regarding an identified affected case of battery overheating that is initiated during charging, causing the battery to dislodge.
So Nokia along with Matsushita came forward to replace all the batteries that have been manufactured between December 2005 and November 2006. This replacement is only available for Nokia branded batteries codenamed BL-5c.
To check if your battery is of BL-5c branded please open up your battery and check for “Nokia” and “BL-5C” which are printed on the front of the battery.
Once it’s confirmed go to this page and follow the step by step instruction to check if your battery is manufactured between the specified dates and comes under replacement.
I recently bought a nokia 6680 (gray market) and checked if my battery comes under replacement policy or not since i don’t have bill or warranty. I proceeded by entering the identification number and the nokia showed up the following message.
Your battery is not among those manufactured by Matsushita between December 2005 and November 2006 and your battery will not be replaced.
Thank god for saving my time to replace my battery and staying phoneless. Make sure to check if your battery comes under their replacement period.