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The #1 secret to improve battery life on any Android phone

If you don't want a list of software engineering feats as long as your arm simply to squeeze an additional half hour out of your battery, then we're here to tell you the single biggest secret to extending your battery life. A single setting is all it takes. The one trick you need to know to save battery life on Android is...

Battery life doesn't have to be a difficult thing to fix. © ANDROIDPIT

Limit your screen output

The screen is the biggest power sucker on your Android device, so the more you can do to limit its demands on your battery, the better. Simply making your screen timeout setting as short as humanly possible can have a significant effect on your battery, as can dropping the display brightness.

Screen timeout

What is screen timeout, I hear you ask? Screen timeout is the amount of time your screen stays active once you've stopped using it. By default it is often set to a longer time than is necessary and most people don't ever think to change it.

Personally, I can live with 15 seconds, for others it's 30 seconds. But it doesn’t take a math genius to realize both of these are orders of magnitude better than two minutes. Go to Settings > Display > Sleep

AndroidPIT Screen Timeout
30 minutes?!? Seriously? Keep it as short as you can live with. © AndroidPIT


While you're at it, drop your screen brightness to as low as you can possibly handle, and make sure auto-brightness is turned off, as all that adjusting of the brightness consumes a lot of battery. You can always manually bump up your brightness when you need it (and then straight back down afterward). Go to Settings > Display > Brightness

Ok, so it was really two secrets, but these two simple display settings will make a significant difference to your Android battery life. Now you just have to look at it less.

What is your screen timeout set to? Do you use auto-brightness?


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  • Android needs to better on battery life I am considering moving off of the OS and back to blackberry for better management of powers, apps, etc

  • Having the screen time out while using a phone is annoying. I set mine to 30 minutes (max for my phone) and just manually turn it off whenever I'm not using it.

  • With (LED back-lit) LCD screens, the dimmest setting is not actually the most energy efficient. This is because the background is pure white and the liquid crystal elements block the light coming through to yield the display which requires energy.

    I know this from my Android tablet which I use for reading. I have a black background and white text which I dim to the max to minimize its brightness at night. Whenever I run below 14%, the energy-saving mode comes on which cranks up the brightness.

    I'm not sure how the whole system works. It's possible that the LED back-light is a fixed brightness, or it might vary (perhaps going extra bright in outdoor conditions so the screen is not washed out.) So ideal settings would require some research.

  • Frank Feb 12, 2015 Link to comment

    I have my screen timeout set to 30 seconds,and Slider Widget from the play store for brightness. While indoors, brightness is set to 7% - outdoors it is set as needed.

  • I use a app on my tablet called "Battery Doc" and "Save Power" they free to download and do great job on saving power.

  • I use auto brightness because if I left the phone in low brigjtness, then when I need to use it on sunny day, I can't see the screen for adjusting.

  • Benovite Jan 28, 2015 Link to comment

    You forgot another very important way to improve battery life: turn off the location feature of the phone. I get a huge amount of extra battery life by not having Google constantly checking my location. And when I need the location function for maps, etc I just hit the GPS toggle button in the quick settings menu. Once I'm done I turn it right back off and continue to save a lot of battery life.

  • nonobio Jan 28, 2015 Link to comment

    What does consume when autobrightness is on ? Is it that sometimes the screen stays at a high level brightness when it shouldn't, or is the analyse process which consume ? About analyse, how does it works ?

    • Angus P. Jan 28, 2015 Link to comment

      its only my opinion, because it adjusts brightness to light around you, i can usually see it better when its abit more dimmer. and then there is the fact that it is constantly adjusting to different light..
      i guess it also depends on personal opinion, but i can sqeeze in extra battery % without being bothered.

      • nonobio Jan 28, 2015 Link to comment

        Do you know how the analyse works ? Is it by the webcam or a independant captor ?

      • Angus P. Jan 28, 2015 Link to comment

        if im correct, it uses the light sensor.

      • nonobio Jan 30, 2015 Link to comment

        Ok. And do you think this sensor consume power or not ? I mean : if the sensor analyse the light and then doesn't change the luminosity level, does it consume more power because the sensor did an analyse ?

  • Angus P. Jan 28, 2015 Link to comment

    i set brightness manually according to conditions, autobrightness can sometimes consume more than needed.
    i do use an app called 'Darker', that allows me to set brightness to lower than default (used for indoors), Pro version has many other useful features.

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