I recently upgraded my BlackBerry Pearl’s operating system to the latest supported version (version 6.x) only to find that my battery life dropped dramatically from 24+ hours to 6-7. I had noticed a plethora of new applications that had been installed by default. These applications are mainly instant messenger/facebook related. My suspicion was that even though the applications were “switched off” they were attempting to poll the various social networking/instant messenger sites. Testing my theory was relatively easy as I don’t use the applications I uninstalled them and my battery life has been restored to 30+ hours.