A number of new features embedded in the operating system BlackBerry 7.1.0.247, one of which features to extend battery life BlackBerry.
Yes, it is said in the latest update of this Research In Motion (RIM) not only adds a few new native applications, but also a special feature that they call Battery Saving Mode. Through this feature BlackBerry users can customize their own mobile phone if you want the lowest battery consumption, or want to maximize the full potential but with a BlackBerry battery side effects to subside.
Quoted from berryreview, Sunday (2/12/2012), the operating system was tested by the BlackBerry 9790 but will also be available for the BlackBerry 9900. Unfortunately, the release schedule is not yet known operating system or device which later acquired the allocation to upgrade to BlackBerry OS 7.1.0.247. Could it make economical?