HP Pavilion xu100 HP OmniBook 500 - Reference Guide Revision 3 - Page 58

To use additional batteries, To get the most from your batteries

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Batteries and Power Management Using Battery Power To get the longest operating time, wait until the battery's charge is below 50% before recharging, then charge it fully (100%). Charging can take up to approximately 2 hours. You can continue working while the battery charges. A fully charged battery can operate the computer for up to approximately 4 hours, depending on your computer's model, power management settings, and level of use. To use additional batteries You can install a secondary battery in either or both of the expansion base's plug-in module bays. See "Using Plug-In Modules" on page 84 for information about installing plug-in modules. For instructions on replacing the main battery, see "Step 1: Install the battery" on page 21. To get the most from your batteries Follow these suggestions to make your battery's power last as long as possible. • Plug in the AC adapter, especially when using a drive in the expansion base's module bays, or any external connections such as a PC Card or a modem. • Set the display brightness to the lowest comfortable level (Fn+F1). • Put the computer in Standby mode whenever you are not using it for a short while: press the blue sleep button for approximately one second, or click Start, Shut Down (or Turn Off Computer), Standby. • Put the computer in Hibernate mode whenever you want to save your current session, but will not be using the computer for several hours: press Fn+F12. • Set the automatic timeout settings to emphasize saving power. If your computer has a multispeed processor and uses Windows 98 or 2000, use the lower speed on battery power (the default settings conserve battery power)-see "How the computer manages power automatically" on page 52. • If your computer has a wireless on-off button, turn off the wireless function when you're not using it. Press the wireless on-off button so the light turns off. • If you have an I/O PC Card-that is, a PC Card having an external connection, such as a network card-remove it when you're not using it. Some I/O cards use significant power even while they're inactive. 58 Reference Guide

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Batteries and Power Management
Using Battery Power
58
Reference Guide
To get the longest operating time, wait until the battery’s charge is below 50% before
recharging, then charge it fully (100%). Charging can take up to approximately 2 hours.
You can continue working while the battery charges.
A fully charged battery can operate the computer for up to approximately 4 hours,
depending on your computer’s model, power management settings, and level of use.
To use additional batteries
You can install a secondary battery in either or both of the expansion base’s plug-in
module bays. See “Using Plug-In Modules” on page 84 for information about installing
plug-in modules.
For instructions on replacing the main battery, see “Step 1: Install the battery” on
page 21.
To get the most from your batteries
Follow these suggestions to make your battery’s power last as long as possible.
•
Plug in the AC adapter, especially when using a drive in the expansion base’s module
bays, or any external connections such as a PC Card or a modem.
•
Set the display brightness to the lowest comfortable level (Fn+F1).
•
Put the computer in Standby mode whenever you are not using it for a short while:
press the blue sleep button for approximately one second, or click Start, Shut Down
(or Turn Off Computer), Standby.
•
Put the computer in Hibernate mode whenever you want to save your current session,
but will not be using the computer for several hours: press Fn+F12.
•
Set the automatic timeout settings to emphasize saving power. If your computer has a
multispeed processor and uses Windows 98 or 2000, use the lower speed on battery
power (the default settings conserve battery power)—see “How the computer
manages power automatically” on page 52.
•
If your computer has a wireless on-off button, turn off the wireless function when
you’re not using it. Press the wireless on-off button so the light turns off.
•
If you have an I/O PC Card—that is, a PC Card having an external connection, such
as a network card—remove it when you’re not using it. Some I/O cards use
significant power even while they’re inactive.