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.
Please visit this site to discover if your phone battery may be changed
Note: if your battery will be eligible for change, you'll have to compile a form.
The replacement will be sent via mail and you should return back your old battery as detailed into the pack you will receive.
Almost all symbian phones from 6600 to N91 could be affected
The complete list is here
