apps running on background will drain battery fast, make sure you exit out of the app which you are not using, say while closing the app press menu key and select exit or close, which will prevent the app from running at the background.
at times i had trouble going on to each and every app (browsing through the phone) and close them manually, you can press the menu key for 2 to 3 seconds will bring the list of apps open and running, you can then go on to each and close them manually or get battery saver pro app which has advanced process monitor feature and helps you charge for a lil longer than usual. (though bb has weakness with their battery)
in the end you can use the battery saving mode on os 7 by far the best feature on os 7, set the settings and use the options to your usage of bb. then yo can always google and would set your bb to settings which consumes less battery like browser britness and many other.
atlast i found saving mode and really appreciate your advice. Thanks
