The best application of battery optimization 2017:

The best application of battery optimization 2017:

the Greenify application allows you to recharge your phone's battery as long as possible because the problem of charging your Android battery is a major concern for all Android users worldwide. The program is designed to extend battery life for as long as possible by shutting down applications and programs running in the background of the system that constantly charge the battery.

Download Greenify

For the application to work better you have to make the root to your phone

Download King Root

KingRoot is an application that lets you root your Android device easily without a computer