ok, so i just bought the commando couple days ago my dad has the same phone and first thing we did was installed a battery saver (juice defender) and a app killer (i had automatic app killer , he has something else) anyway, wen to a friend of mine who is really good wit phones like these its like his thing. he said to take off both apps that the phone saves battery itself. iv really noticed no difference in my battery life. so i cant tell whether or not the apps actually worked or not....my question is does anyone else on here use the battery saver app and app killer? or are they really useless....just trying to get more than one opinion.