settings -> system -> Advanced -> Developer Options -> System Tracing. Uncheck the Trace Debuggable Applications. Enjoy about 15% better battery life.



Make sure to have a before and after record of your battery usage, with same set of apps, and same pattern of usage over couple of charges (like 3-4 days), to see how this affects your battery life. So, don't just rush to make the change, measure it. Your numbers may vary compared to mine.