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3. In the Mouse Properties window, select the ThinkPad tab.
4. Follow the instructions on the screen.
Power management
When you need to use your computer away from electrical outlets, you depend on battery power to keep
your computer running. Different computer components consume power at different rates. The more you
use the power-intensive components, the faster you consume battery power.
Spend more time unplugged with ThinkPad batteries. Mobility has revolutionized business by enabling
you to take your work wherever you go. With ThinkPad batteries, you will be able to work longer without
being tied to an electrical outlet.
Using the ac power
The power to run your computer can come either from the removable battery, the built-in battery, or from ac
power through the ac power adapter. While you use ac power, the batteries charge automatically.
Connecting the ac power adapter
To connect the ac power adapter, do the following:
Attention: Using an improper power cord might severely damage the computer.
Note: Ensure that you perform the actions in the order in which they are listed.
1. Connect the power cord to the ac power adapter.
2. Connect the ac power adapter to the power connector of the computer.
3. Plug the ac power adapter into an electrical outlet.
Tips for 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 batteries, make sure that the battery temperature is at least 10°C (50°F).
• You can charge the batteries when the ac power adapter is connected to the computer. You need to
charge the batteries in any of the following situations:
– When the battery icon in the Windows notification area shows a low percentage of battery power
remaining.
– When the batteries have not been used for a long time
Checking the battery status
The battery-status icon in the Windows notification area displays the percentage of battery power remaining.
The rate at which you use battery power determines how long you can use the batteries of your computer
between charges. Because of different user habits and needs, it is difficult to predict how long a battery
charge will last. There are two main factors:
• How much energy is stored in the battery when you begin to work.
• The way you use your computer. For example:
– How often you access the storage drive.
– How bright you make the computer display.
.
Chapter 2
Using your computer
29
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