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Maximize the battery life
• Lower the brightness of the computer display.
• Turn off the wireless features when not in use.
• Use the battery until the charge is depleted.
• Recharge the battery completely before using it.
Set power button behaviors
You can define what the power button does according to your preference. For example, by pressing the
power button, you can turn off the computer or put the computer to sleep or hibernation mode.
To change what the power button does:
1. Right-click the battery status icon in the Windows notification area.
2. Click Power Options
3. Change the settings as you prefer.
Set the power plan
®
For ENERGY STAR
compliant computers, the following power plan takes effect when your computers have
been idle for a specified duration:
Table 2. Default power plan (when plugged into ac power)
• Turn off the display: After 10 minutes
• Put the computer to sleep: After 30 minutes
To reset the power plan to achieve the best balance between performance and power saving:
1. Right-click the battery status icon and select Power Options.
2. Choose or customize a power plan of your preference.
Set performance mode
You can press Fn + Q to manually set the computer's performance mode.
Performance mode
Auto
Quiet
High performance
20
Lenovo IdeaPad S940-14IWL User Guide
Choose what the power button does.
Description
The computer monitors what programs are running and automatically set the
highest frequency for the processing unit.
The computer's processing unit may not operate at its highest frequency.
The computer's processing unit can operate at its highest frequency.
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