I used my media player for 6 hours straight, watched a couple youtube videos and sent and recieved 10-20 texts today along with regular phone and calendar useage... sitting about 40% left.. but ya I charge it everynight too....
After 3 10-20 min calls some emails and text my battery is at about 60%. But that's with the 4.5 upgrade. On the 4.3 I could use my BB all day and go without a recharge.