If you're a BlackBerry Torch 9800 user running any BlackBerry OS version between v188.8.131.526 and v184.108.40.2066, you should install another OS version to increase your overall battery life, according to BlackBerry-maker Research In Motion (RIM).
"The BlackBerry Torch 9800 suffers rapid battery drain and overall sluggishness due to the Phone application utilizing high amount of CPU…This is a previously reported issue that is being investigated by our development team. No resolution time frame is currently available."
Unfortunately, the flawed software is the official OS release for at least one major wireless carrier: AT&T in the United States.
Though RIM suggests you downgrade your BlackBerry Torch to another official OS available on its BlackBerry downloads site, you could also upgrade to the latest leaked Torch OS, v220.127.116.110, though you should do so at your own risk, since this build is an unofficial, or beta, release.