For a very! long time i just loved using battery saving apps i cannot begin to think how much money i have wasted on trying to find the right one battery app after battery app if u have a 9900 the battery saving mode is all you need battery apps will not work (from what ive seen) i keep battery saving mode always on i was thinking about getting a extra battery but i can now hold off i never trusted my htc sensation to save battery on its own but now i can trust my blackberry ! no battery saving app needed !
Never noticed a difference either. if things like you screen brightness is 100% or so u would but mine is always set to 10% and battery saving mode instead changes it to 20% when it kicks in. turned mine off.
Sent from my Black.. and your girl ain't coming back.