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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 les or exiting from any
applications that are running. When you enter hibernation, all open applications, folders, and les are
saved to the hard disk, and then the computer turns off. To enter hibernation, do as follows:
1. Click Start.
2. Click the triangle mark on the right side of the Shut down icon, then select Hibernate.
When you are not using the wireless features, such as Bluetooth or wireless LAN, turn them off. This will
help conserve power. To turn off the wireless features, press Fn+F5.
Enabling the wakeup function
If you put your computer into hibernation mode, and the wakeup function is disabled (this is the default
setting), the computer does not consume any power. If the wakeup function is enabled, it consumes a small
amount of power. To enable the function, do as follows:
1. Click Start ➙ Control Panel ➙ System and Security.
2. Click Administrative Tools.
3. Click Task Scheduler. If you are prompted for an administrator password or conrmation, type the
password or provide conrmation.
4. From the left pane, select the task folder for which you want to enable the wakeup function. The
scheduled tasks are displayed.
5. Click a scheduled task, and then click the Conditions tab.
6. Under Power, select the check box for Wake the computer to run this task.
Enabling the battery alarm
You can program your computer so that when the battery power falls below a certain level, three events
occur: the alarm goes off, a message is displayed, and the LCD is turned off.
To enable the battery alarm, do as follows:
1. Start Power Manager.
2. Click the Global Power Settings tab.
3. For Low battery alarm or Critically low battery alarm, set the percentage of the power level and set
the action.
Note: If your computer enters sleep or hibernation mode when the battery is low, but the alarm message
has not yet appeared, the message will appear when the computer resumes. To resume normal operation,
press OK.
Handling the battery
DANGER
Do not attempt to disassemble or modify the battery pack.
Attempting to do so can cause an explosion, or liquid leakage from the battery pack.
A battery pack other than the one specied by Lenovo, or a disassembled or modied battery
pack is not covered by the warranty.
Chapter 2. Using your computer 33