Nokia N75
Call AT&T and ask them to send an update to your phone and go into store for a new battery...
Also I went into the store and told them about the battery and the manager gave me a new battery which is model BL-4B which is different than the one the phone came with. So I am hoping things get better. This is one heck of a phone. I will write a review soon, so be on the look out.
Peace.
http://europe.nokia.com/batterycheck »
http://knowledge.search.nokiausa.com/nokiaselfservic ... »