Battery Manager for Symbian Battery Manager is a simple application for Symbian phones which will tell you what your battery status is. Whether you are travelling a lot or you simply forgot to charge your phone last night, Battery Manager will aide you with your battery status. Configure it to alert you when the battery meter will reach a certain level.

Besides actually letting you know the batter has reached two bars it will switch your current profile to something more silent to help you conserve those bars. And all that happens automatically after you've customized it once. It will also switch the Bluetooth for you if you really want to save more battery juice. Read more here and download it here.