To enable the battery alarm, do the following:
1. Start the Power Manager program.
2. Click the
Global Power Settings tab
.
3. For
Low battery alarm or Critically low battery alarm
, set the percentage of the power level and set
the action.
Note:
If your computer enters sleep or hibernation mode when the battery is low, but the alarm message
has not yet been displayed, the message will be displayed when the computer resumes. To resume normal
operation, when the message is displayed, click
OK
.
Using the ac power adapter
The power to run your computer can come either from the lithium-ion (Li-ion) battery pack of your computer,
or from ac power through the ac power adapter. While 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 your computer.
Connecting the ac power adapter
To connect the ac power adapter, do the following:
Note:
Ensure that you perform the actions in the order in which they are listed.
1. Connect the power cord to an electrical outlet.
2. Connect the power cord to the transformer pack.
3. Connect the ac power adapter to the power connector of the computer.
Tips on using the ac power adapter
You can check the status of your battery at any time by looking at the battery meter at the bottom of
your display.
• 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, 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. You need to charge the battery in any of the following conditions:
– When you purchase a new battery
– When the battery meter at the bottom of your display shows that the battery power remaining is low.
– If the battery has not been used for a long time
Charging the battery
When you check battery status and find that the percentage of power remaining is low or when the power
alarm alerts you that the remaining power is low, you need to charge your battery or replace it with a
charged battery.
Chapter 2
.
Using your computer
41
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