As first reported when the Developer Preview 2 version of the Android Nougat was around, the 7.0 builds suffered with an issue affecting its battery life adversely. Even though reported in June, the issue still persists even when DP3, DP4, DP5 and finally the release build is out now.
It was supposed to be fixed under the release build, as it was marked as solved, and set for release in future updates, but the users are reporting the same issue again. That’s sad, but as a result of this, the issue has been given due acknowledgement again, and marked as Assigned as development team looks for solution. You can find the discussion over here: Android Issue Tracker.
If you too are experiencing sever battery drain on Android Nougat, then you can report your findings (along with the screenshot of battery usage screen, if possible) at that page.
Let’s hope the battery issue that is even prevailing in the NRD90M build of the Android 7.0 gets fixed in the upcoming maintenance update, Android 7.0.1/Android 7.1.
Meanwhile, do report your findings of Nougat issues in the comments section below, as we will try our best to help you with them.
Nougat Battery Drain Fix
Well, try this. Head over to Settings > Battery > tap on 3-dot menu at top right, and select Battery Optimization. Now, tap on ‘Now optimized’ and select the ‘All apps’ from the dropdown.
Now, tap the 3-dot menu again, and select the option ‘Reset app preferences’. A pop-up will appear, tap on ‘RESET APPS’ now to reset all your apps preferences. This will enable disabled apps, but more importantly for us, will reset permissions given to all apps, which is what we wanted.
Now, when open an app, any app, it will ask for permissions again, which is fine (just tap on allow for all), and this would also fix the permissions issues and such with the device. With apps getting proper permissions, they won’t have the operations held back due to that, and you should see improvement in battery life.
Do let us know how this works out for you.