App developers have designed an APP that might help you save a couple of hours on your Blackberry.
this app name is called Battery Doctor.
Battery Doctor has the ability to Prompt Or Auto-Disable WiFi (if not connected) to conserve Battery.
It has the ability to Schedule your device to turn off and back on at specific time. Multiple off/on schedules are possible and can save a lot of power.
This is very useful for people that are always on their phone while they fall alseep you can schedule the time for your phone to turn off knowing you might have slept at this time.