Lenovo ThinkPad 11e - Manual (Page 48)

• For Windows 7: Start the Power Manager program and click the Battery tab. For instructions on how
to start the Power Manager program, see “Accessing Lenovo programs on the Windows 7 operating
system” on page 13.
• For Windows 8.1: Start the Lenovo Settings program and click Power. For instructions on how to start
the Lenovo Settings program, see “Accessing Lenovo programs on the Windows 8.1 operating system”
on page 15.
Enabling the battery alarm on the Windows 7 operating system
For the Windows 7 operating system, you can program your computer so that when the battery power falls
below a certain level, three events occur: an alarm is initiated, a message is displayed, and the LCD turns off.
To enable the battery alarm, do the following:
1. Start the Power Manager program and then click the Global Power Settings tab. For instructions
on how to start the Power Manager program, see “Accessing Lenovo programs on the Windows 7
operating system” on page 13.
2. In the Alarms area, set the power level percentage and the action in the Low battery alarm section and
Critically low battery alarm section.
Note: If your computer enters sleep or hibernation mode when the battery power is low, but the alarm
message has not yet been displayed, the message will be displayed when the computer resumes. To return
to normal operation, when the message is displayed, click OK.
Charging the battery
It is recommended that you charge the battery when the battery power remaining is low. For example:
• When you find that the percentage of the remaining power is low.
• When the power alarm alerts you.
If an ac outlet is convenient, connect the ac power adapter to the computer and the ac outlet. Depending on
the battery size and the physical environment, the battery will be fully charged in about three to six hours.
The battery-status icon helps you identify that the battery is charging, and that the battery is fully charged.
Note: To maximize the life of the battery, the computer does not start recharging the battery if the remaining
power is greater than 95%.
Managing the battery power
To achieve the best balance between performance and power saving, adjust your power plan settings.
To access power plan settings, do the following:
• For Windows 7: Start the Power Manager program and then click the Power Plan tab. For instructions on
how to start the Power Manager program, see “Accessing Lenovo programs on the Windows 7 operating
system” on page 13.
• For Windows 8.1: Right-click the battery-status icon in the Windows notification area and click Power
Options. Then click Change plan settings next to your power plan.
For more information, refer to the help information system of the program.
Power-saving modes
There are several power-saving 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.
32 User Guide