Managing The Battery Power; Power-Saving Modes - Lenovo ThinkPad E450 User Manual

• Recharge the battery completely before using it. You can see whether the battery is fully charged from the
battery status icon in the Windows notification area.
• Always use power management features such as power-saving modes.

Managing the battery power

To achieve the best balance between performance and power saving, adjust your power plan settings.
To adjust power plan settings, do the following:
1. Go to Control Panel, then change the view of Control Panel from Category to Large icons or Small icons.
2. Click Power Options.
3. Follow the instructions on the screen.
For more information, refer to the help information system of the program.

Power-saving modes

There are several modes that you can use at any time to conserve power. This section introduces each
mode and gives tips on the effective use of battery power.
• Screen blank mode (for Windows 7 only)
The computer display requires considerable battery power. To turn off the power to the display and make
the computer enter screen blank mode, right-click the battery gauge icon in the Windows notification area
and select Power off display.
• Sleep mode
In sleep mode, your work is saved to memory, and then the hard disk drive, hybrid drive, or solid-state
drive and the computer display are turned off. When your computer wakes up, your work is restored
within seconds.
To put your computer into sleep mode, press Fn+4.
You also can put the computer into sleep mode by doing the following:
– For Windows 7: Open the Start menu, then click the arrow next to the Shut down button. Click
Sleep from the menu displayed.
– For Windows 8.1: Go to the Start screen by pressing the Windows key
, then click Sleep.
– For Windows 10: Open the Start menu, click
• Hibernation mode
By using this mode, you can turn off your computer completely without saving files or exiting any
programs that are running. When the computer enters hibernation mode, all open programs, folders, and
files are saved to the hard disk drive, hybrid drive, or solid-state drive, and then the computer turns off.
To put the computer into hibernation mode, do the following:
– For Windows 7: Open the Start menu, then click the arrow next to the Shut down button. Click
Hibernate from the menu displayed.
– For Windows 8.1 and Windows 10: Define what the power button does first, then press the power
button to put the computer into hibernation mode. For more information, see "Front view" on page 1.
If you put your computer into hibernation mode with the wake-up function disabled, the computer does
not consume any power. The wake-up function is disabled by default. If you put your computer into
hibernation mode with the wake-up function enabled, the computer consumes a small amount of power.
To enable the wake-up function, do the following:
1. Go to Control Panel and click System and Security.
2. Click Administrative Tools.
Power, and then click Sleep.
Chapter 2
, click the power icon
.
Using your computer
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