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.
Charging. The battery icon on an iPod screen indicates the state of the internal battery. If the iPod is awake, a small version of the icon appears in the upper right hand corner of the display. If the iPod is asleep while being charged, a larger version of the same icon appears in the center of the screen.