I've had my device for a couple of weeks now, and i've been able to go two full days on a full battery with light usage.
Just two nights ago, when i woke up my battery life dropped by about 30 or so percent than what it was before i went to sleep. is there something draining my battery while i'm not using it? I often put it in stand-by mode and put it in the pouch.
You can check to see what is running on your phone. Could be an app you installed like viigo or facebook that is doing it
alt - esc (button right of the trackball) will show you what is open. You should have 5. (bbm, messages, phone, browser and home screen). Anything other than those is open, so look into it... You can also make sure you use menu>close when exiting an app. Any new apps recently that could be causing this?