Charging The Battery; Power Saving - Lenovo E41-80 User Manual

Tips on using the ac power adapter
Observe the following guidelines when using the ac power adapter:
• When the ac power adapter is not in use, disconnect it from the electrical outlet.
• Do not bind the power cord tightly around the ac power adapter transformer pack when it is connected to
the transformer.
• Before you charge the battery pack, make sure that its temperature is at least 10°C (50°F).
• You can charge the battery when the ac power adapter is connected to the computer and the battery is
installed. Charge it in any of the following conditions:
– When you purchase a new battery
– If the battery meter at the bottom of your display indicates a low battery charge level
– If the battery has not been used for a long time

Charging the battery

It is recommended that you charge the battery or replace it with a charged battery on any of the following
conditions:
• The percentage of battery power remaining is low.
• The power alarm alerts you that the remaining power is low.

Power saving

There are several options that you can choose to conserve power.
Putting computer into sleep mode
If you are not going to use the computer for a short time, put the computer into sleep mode. This not only
helps you conserve power, but also provides you the convenience to bypass the startup process and
directly resume the computer for normal operation.
To put the computer into sleep mode, do one of the following:
• Windows 7:
1. Click Start.
2. Click the triangle mark next to the Shut down button, and then select Sleep.
Windows 10:
1. Click Start.
2. Select Sleep from the Power menu options.
• Press Fn+F1.
Attention: Wait until the power indicator starts blinking (indicating that the computer is in sleep state)
before you move the computer. Moving the computer while the hard disk drive is spinning can damage the
hard disk drive, causing loss of data.
To wake up the computer, do one of the following:
• Press the power button.
• Press any key on the keyboard.
Shutting down the computer
If you are not going to use the computer for a day or two, shut it down.
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User Guide