Legacy. Hermann Ebbinghausâ lasting contributions to the field of psychology are multiple. In addition to being the first psychologist to study areas of human learning and memory, Ebbinghaus contributed greatly to the establishment of experimental psychology.
This includes dimming the display slightly, stopping Mail push and fetch, turning off background app refresh, turning off Hey Siri, and a few other iOS features. By turning these features off, the battery life of the iPhone is extended dramatically, and when Low Power Mode is enabled the iPhone battery icon is yellow to demonstrate this.
If you want to turn off Low Power Mode and rid the yellow battery icon at any time, you can do either of the following: 1  Let the iPhone battery charge to at least 80% when it will turn itself off automatically, changing the yellow battery icon back to the green icon â if the iPhone wonât charge follow these troubleshooting steps to fix it.