If an ac outlet is convenient, plug the ac power adapter into the outlet, and then plug it into ac power connector of the computer. The batteries will be fully charged in about three to six hours. The charging time is affected by the battery size and the physical environment. You can check the battery charging status at any time through the battery status icon in the Windows notification area.
Note: To maximize the life of the batteries, the computer does not start recharging the batteries if the remaining power is greater than 95%.
Maximizing the battery life
To maximize the life of the battery, do the following:
•Use the batteries until the charge is completely depleted.
•Recharge the batteries completely before using it. You can see whether the batteries are fully charged from the battery status icon in the Windows notification area.
•Always use
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 14.
•For Windows 8:
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,
•Sleep mode
In sleep mode, your work is saved to memory, and then the
Depending on the model, your computer might support the 30 Day Standby function. When this function is enabled, the computer consumes even less power in sleep mode and takes only seconds to resume normal operation when you press the power button. For more information about the 30 Day Standby function, do the following:
–For Windows 7: Refer to the help information system of the Power Manager program. For instructions on how to start the Power Manager program, see “Lenovo programs” on page 14.
–For Windows 8: Open the Lenovo Settings program and click Power ➙ 30 Day Standby.
To put your computer into sleep mode, do the following:
–For Windows 7: Use the Start menu shutdown option.
–For Windows 8: Move the cursor to the bottom right corner of the screen to bring up the charms. Then click Settings ➙ Power ➙ Sleep.
Chapter 2. Using your computer 29
