Checking The Battery Status; Using The Ac Power Adapter - Lenovo E31-70 User Manual

Checking the battery status

The battery icon in the Windows notification area displays the percentage of
battery power remaining. Different computer components consume power at
different rates. The more you use the power-intensive components, the faster you
consume battery power. Because each computer user has different 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:
– How often you access the hard disk drive.
– How bright you make the computer display.

Using the AC power adapter

When you use AC power, the battery charges automatically.
The AC power adapter that comes with your computer has two basic
components:
• The transformer pack that converts AC power for use with the computer.
• The power cord that plugs into the AC outlet and into the transformer pack.
Attention: Using an improper power cord could cause severe damage to the
computer.
Connecting the AC power adapter
To connect the AC power adapter, do the following:
1. Plug the power cord into an electrical outlet.
2. Connect the power cord to the transformer pack.
3. Connect the AC power adapter to the AC power connector of the computer.
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).
Chapter 2. Using your computer
17