Just got the Epic for my wife, I have the Evo. She wanted the keyboard. I havent done any battery tweaking, task killing and the battery seemed to be down from 100% to 75% with in 1.5 hours. Now that can be from the "learning" phase of the phone like screens wall papers emails ect. From the preliminary looks of this, it may have a similar battery life of the Evo. Ill have to be bench marking this week. Lets hear your experience with the Epic and Battery life.