Yep depends on usuage really. Take me for example I have to charge mine twice a day because I use it for everything. I'm an abuser for sure but if you don't use it much and it dies really fast might be a bad battery
Posted from my CrackBerry at wapforums.crackberry.com
I usually go through an entire battery once a day. Usually I have MSN going constanly. Emails coming in, Texts, Checking My facebook, and reading random Wiki's on the way home on the bus. So I say I get a full days worth out of it. Plus I leave the backlight at %100.