Using The Battery - Lenovo ThinkPad P70 User Manual

• Power cord: Connects the ac outlet and the ac power adapter.
Connecting the ac power adapter
To connect the computer to ac power, do the following:
Attention: Using an improper power cord might severely damage your computer.
Note: Ensure that you perform the actions in the following order:
1. Connect the power cord to the ac power adapter.
2. Connect the ac power adapter to the power connector of the computer.
3. Connect the power cord to an electrical outlet.
Tips on 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.

Using the battery

When you 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 are able to work longer without being tied
to an electrical outlet.
Checking the battery status
Move your pointer to the battery-status icon in the Windows notification area to check the battery status.
The battery-status icon displays the percentage of battery power remaining and how long you can use
your computer before you must charge the battery.
The rate at which you use battery power determines how long you can use the battery of your computer
between charges. Because each computer user has different habits and needs, it is difficult to predict how
long a battery charge lasts. 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 do you access the storage drive.
– How bright do you make the computer display.
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Chapter 2 Using your computer
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