How I saved battery on my nexus

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http://forums.androidcentral.com – Go to Settings -> Scroll down to about phone -> Scroll down to build number -> tap on "Build Number" repeatedly until you gain developer status Go back -> above "About phone" you should see a new option called "Developer options", tap on it -> Scroll all the way down to "Background process limit", tap on it From my understanding, configuring this limits what goes on it the background. I've changed mine and noticed a good battery increase on my phone. Test it out yourself (HowTos)