Maximizing Battery Life; Managing Your Battery Power; Power-Saving Modes - Lenovo ThinkPad X1 User Manual

If an ac outlet is convenient, plug the ac power adapter into it, and then insert the jack into the computer.
The battery will charge in about 1.5 hours. This is affected by the battery size and the physical environment.
The battery status indicator will let you know that the battery is charging, and will turn off when battery
is fully charged.
Note: To increase the life of the battery, the computer does not start recharging the battery if the remaining
power is greater than 95%.

Maximizing battery life

To maximize the life of the battery, do the following:
• For a new battery or a battery that you have not used recently, recharge the battery completely before
using it.
• Always use power management features such as power modes, screen blank, sleep, and hibernation.

Managing your battery power

With Power Manager, you can adjust your power settings to give you the best balance between performance
and power saving.
To start the utility program, refer to "Accessing applications in Windows 7" on page 17.
For more information about the Power Manager program, refer to the on-line help 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 the battery power.
Introducing the power-saving modes
• Screen blank.
The computer display requires considerable battery power. To turn off power to the display, do as follows:
1. Press Fn+F3. A panel for selecting a power plan appears.
2. Select Power off display (keep current power plan).
Notes: You can also turn off the computer display as follows:
1. Press Fn+F3. A panel for selecting a power plan appears.
2. Select Fn+F3 Settings.
3. Select Power off display.
4. Click OK. The next time you press Fn+F3, you can turn off the computer display.
• Sleep
In sleep mode, your work is saved to memory, and then the solid state drive or the hard disk 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+F4. To return from sleep mode, press the Fn key.
• Hibernation
By using this mode, you can turn off your computer completely without saving files or exiting from any
applications that are running. When you enter hibernation, all open applications, folders, and files are
saved to the hard disk, and then the computer turns off. To enter hibernation in the Windows 7 operating
system, do as follows:
1. Click Start.
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