NOTE: If you need to create a user account password or change your current user account password, click Create or change your user account password, and then follow the on- screen instructions. If you do not need to create or change a user account password, go to step 5.

5.Click Save changes.

Windows XP

1.Right-click the Power Meter icon in the notification area, and then click Adjust Power Properties.

2.Click the Advanced tab.

3.Select the Prompt for password when computer resumes from Standby check box.

4.Click Apply.

Using battery power

When a charged battery is in the computer and the computer is not plugged into external power, the computer runs on battery power. When the computer is plugged into external AC power, the computer runs on AC power.

If the computer contains a charged battery and is running on external AC power, the computer switches to battery power if the AC adapter is disconnected from the computer.

NOTE: When you disconnect AC power, the display brightness is automatically decreased to save battery life. For information on increasing or decreasing display brightness, refer to the Getting Started guide.

You can keep a battery in the computer or in storage, depending on how you work. Keeping the battery in the computer whenever the computer is plugged into AC power charges the battery and also protects your work in case of a power outage. However, a battery in the computer slowly discharges when the computer is off and unplugged from external power.

WARNING! To reduce potential safety issues, use only the battery provided with the computer, a replacement battery provided by HP, or a compatible battery purchased from HP.

Computer battery life varies, depending on power management settings, programs running on the computer, display brightness, external devices connected to the computer, and other factors.

Finding battery information in Help and Support in Windows 7

Help and Support provides the following tools and information about the battery:

Battery Check tool to test battery performance

Information on calibration, power management, and proper care and storage to maximize battery life

Information on battery types, specifications, life cycles, and capacity

To access battery information:

Select Start > Help and Support > Learn > Power Plans: Frequently Asked Questions.

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