![OPPO A57 4G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ccc1f389-7e5c-4ef2-86b2-dac3129e8544.png?width=150&height=320)
OPPO A57 4G
Android 12.0
1. Find "Battery"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9a7d7d49-1709-4d0b-a490-fcda21ff950e.png?width=200&height=446)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-9b5b36bf-abf1-4288-9ddc-88a494d4fae2.png?width=200&height=446)
Press Battery.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c0d637ec-c49c-4ce4-87f1-26801312764c.png?width=200&height=446)
2. Extend the battery life
Press Power saving mode.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b737c941-d8c7-47a6-9fb6-c3fd00920965.png?width=200&height=446)
Press the indicator next to "Power saving mode" to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3f8920f6-f7b8-46bf-b665-e50d4b2f5d0c.png?width=200&height=446)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-802a4708-e09c-4cd9-9f91-c6dfc50c5f18.png?width=200&height=446)