Power Saving Mode OPPO A37

How to enable battery saver in OPPO A37? How to turn on power saving mode in OPPO A37? How to save battery in  Android 5.1 Lollipop operating system?

The OPPO A37 is using the Li-Polymer 2630.0 mAh battery. If you would like to use it longer you should enable power saving in OPPO A37.

  1. Start from unlocking the OPPO smartphone and enter Settings. OPPO A37 Settings
  2. Secondly, choose Battery to get into Power Saving Mode.OPPO A37 Power Saving Mode
  3. This is the time to smoothly turn on Low Power Mode to extend battery life.OPPO A37 Power Saving Mode
  4. Perfect! Battery Saver is active and the life of OPPO battery has been extended.OPPO A37 Power Saving Mode

Help! This doesn't work