Choose a power profile
You can manage power usage by choosing a Power Mode. There are three possible profiles:
Performance: High performance and power usage. This mode will only be visible if it is supported by your computer. It will be selectable if your computer is running on AC power. If your device supports lap detection, you will not be able to select this option if the device is running on someone's lap.
Balanced: Standard performance and power usage. This is the default setting.
Power Saver: Reduced performance and power usage. This setting maximizes battery life. It may enable some power saving options, such as aggressively dimming the screen, and prevent those from being switched off.
To choose a power profile:
Open the Activities overview and start typing Power.
Click Power to open the panel.
In the Power Mode section, choose one of the profiles.