P40 User Guide-(ANA-LX4&NX9,EMUI11.1_01,en-us)

Table Of Contents
Enable Power Saving Mode
Optimizer provides two power saving modes:
Power Saving mode reduces power consumption by limiting background app activity,
visual eects, and sounds.
Ultra Power Saving mode strictly controls background apps to ensure that your phone can
stay on for as long as possible. In this mode, you will only be able to use selected apps, and
all system switches, except for Wi-Fi and mobile data, will be turned o.
Go to Settings > Battery (or Optimizer > ), select a power saving mode:
When the battery level is extremely low, enable Ultra Power Saving mode. Your phone will
then display a black home screen.
To add apps you wish to use in Ultra Power Saving mode, touch and select the apps
from the list. You can touch
in the upper left corner to remove the apps or touch
in the upper right corner to exit Ultra Power Saving mode.
When the battery level is not extremely low, but you would still like to save power, enable
Power Saving mode. The icon will then be displayed in the status bar.
Ultra Power Saving mode is not available on some devices. If this option is not
displayed, it indicates that your device does not support the feature.
Enable Performance Mode
Performance mode adjusts the power settings of your phone to deliver maximum
performance. This will cause the battery to drain more quickly, especially when graphic-
intensive apps are used.
When the battery has sucient power, go to Settings > Battery (or Optimizer > ) and
enable Performance mode.
A icon will then be displayed in the status bar.
Performance mode is available on selected devices only. If the Performance mode
option is not displayed in Optimizer, it indicates that your device does not support the
feature.
Enable Smart Charge
Smart Charge learns from your charging habits and manages the charging process
intelligently. This feature reduces the battery wear level and prolongs the battery life by
reducing the time your device spends fully charged. It is advised that you keep this feature
enabled.
For example, if you are used to charging your device overnight or for an extended period of
time, Smart Charge will pause the charging when the battery capacity reaches a certain level.
Settings
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