[iOS 9] How to set “Low Power Mode” / Extend iPhone battery by up to 3 hours

iOS 9 has a nice feature improvement that extends battery life by up to an hour.

In addition, a new feature called ``Low Power Mode'' has been added.

This setting will extend the battery life by up to 3 hours.

How to set "Low Power Mode"

Launch Settings and tap "Battery". ↓

Turn on "Low Power Mode". ↓

When in "Low Power Mode", the battery level in the status bar turns yellow and is always displayed. ↓

Afterword

Turning on "Low Power Mode" will sacrifice some features, such as email retrieval, background app updates, and automatic downloads, but it's a great feature for those who want a little more battery life. I think so.

It would be nice if this feature could be toggled in the control center.
Look forward to future updates!!

[Related]: iOS 9 released, enhanced search function, iPad function expansion, new memo design, etc.