Huawei Mate 8 - Manual (Page 172)

Power management
165
Open Phone Manager, and then touch Battery manager. You can configure the
following settings:
•
Touch Power usage firewall (power-intensive apps) to view power-intensive
background apps. Select the apps you want to close, and then touch to kill them.
•
Touch Consumption level to see which phone hardware and software is using the most
power. Select the apps you want to close, and then touch to kill them.
A message will appear in the notification panel if power-intensive apps are running
in the background. If you don't want to receive such notifications, touch and
then turn off the Power-intensive prompt switch.
Enabling the Ultra power plan
If you're waiting for an important call but your phone has low battery, enable the Ultra
power plan in Phone Manager. This disables everything except essential calling, SMS, and
contact functions, prolonging battery life.
Open Phone Manager. Select Battery manager > Power plan > Ultra, and then select
> Enable.