I appologize if this has been asked before but I couldn't find anything about it. I just got the Droid Pro this past week. And in the few short days I have had it the battery has not lasted more then 4 hours off the charger. I have let it go all the way down and shut off on it's own and then re-charged it and it still does it. Anyone have any suggestions or does this just sound like a bad battery? Is the extended battery worth getting?