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There are numerous apps in the Google Play store claiming to double or triple the battery life. Is it just a myth? Or can they really?

If they really do save some power, why doesn't Android do it by default?

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3 Answers 3

up vote 10 down vote accepted

Those battery saver apps probably work by killing tasks, lowering brightness, disabling data or internet connection, and several other things. Those little things will definitely save battery one way or another.

Why doesn't Android do it by default? I don't know; you'd have to ask the Android developers that. If Android did what battery saver apps do, they'd be limiting Android. Who wants their screens to always be in low brightness? Or their internet connection off when not in use? Those things are probably better off for people to decide, and battery apps (and other relatated apps or utilities) will help them do that.

See also this post on improving battery life: What can I do to increase battery life on my Android device?

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Battery saver apps are useless.You can save battery life by manually reducing brightness ,screen time out,back light duration or turning off the data, GPS, wi fi,blue tooth,etc from settings. There is no need for an app to do it. These apps actually take more power out of your device. So I think Android does not need a battery saving app.

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Yeah the battery saving apps do work and I have personally used many of them just to check. Here is a great list of some of the best battery saver apps to get you started. http://www.technologyvenue.com/best-battery-saving-apps-for-android-phones-and-tablets/

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This answer would be better if you provided links to the apps rather than an outside webpage. What if the page goes down or moves? –  Peanut Nov 9 '13 at 15:41
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