Since iOS 9, the developers have added a power saving mode to the iPhone. According to rough estimates, this should add another two to three hours to the battery life.
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How to enable Power Saving Mode on iPhone
The energy saving mode in the system is called “Energy saving mode “ and you can enable it in the section Battery, standard application Settings… There is also information about the use of the battery and the operating time after the previous recharging.
Also, you can activate or deactivate the power saving mode on the iPhone using the appropriate Siri command.
It should be noted that with the release of iOS 12, the function “Hey Siri”, received support for Power Saving Mode.
Also, starting with iOS 11, “Power saving mode” can be enabled from the Control Center.
Add icon “Power saving mode” in Control Center, follow these instructions.
In addition, thanks to the application Quick commands Power saving mode on iPhone may turn on automatically depending on the battery level, user’s geolocation, time of day, etc.
We described in detail how to configure this on this page.
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What Happens to iPhone When Turning On Power Saving Mode
When you activate Power saving mode, the system automatically limits network activity (receiving mail, automatically downloading updates), disables animated interface elements and reduces the overall performance of the device.
If there is no interaction with the iOS device, the latter goes into off mode in just a few seconds. When the power saving mode is activated, the battery icon turns yellow.