HP Pavilion dv3000, Pavilion dv3100 Power Management

Power Management

User Guide

© Copyright 2008 Hewlett-Packard
Development Company, L.P.

Windows and Windows Vista are either
trademarks or registered trademarks of
Microsoft Corporation in the United States
and/or other countries.

The information contained herein is subject
to change without notice. The only
warranties for HP products and services are
set forth in the express warranty statements
accompanying such products and services.
Nothing herein should be construed as
constituting an additional warranty. HP shall
not be liable for technical or editorial errors
or omissions contained herein.

First Edition: March 2008

Document Part Number: 463196-001

Product notice

This user guide describes features that are common to most models. Some features may not be
available on your computer.

iii

iv Product notice

Table of contents

1 Setting power options

Using power-saving states ................................................................................................................... 1

Initiating and exiting Sleep ................................................................................................... 1

Initiating and exiting Hibernation .......................................................................................... 2

Using the battery meter ........................................................................................................................ 3

Using power plans ................................................................................................................................ 4

Viewing the current power plan ........................................................................................... 4

Selecting a different power plan .......................................................................................... 4

Customizing power plans ..................................................................................................... 4

Setting password protection on wakeup ............................................................................................... 5

2 Using external AC power

Connecting the AC adapter .................................................................................................................. 7

Testing an AC adapter ......................................................................................................................... 8

3 Using battery power

Finding battery information in Help and Support ................................................................................ 10

Using Battery Check ........................................................................................................................... 11

Displaying the remaining battery charge ............................................................................................ 12

Inserting or removing the battery ........................................................................................................ 13

Charging a battery .............................................................................................................................. 14

Maximizing battery discharge time ..................................................................................................... 15

Managing low battery levels ............................................................................................................... 16

Identifying low battery levels .............................................................................................. 16

Resolving a low battery level ............................................................................................. 17

Resolving a low battery level when external power is available ........................ 17

Resolving a low battery level when a charged battery is available ................... 17

Resolving a low battery level when no power source is available ..................... 17

Resolving a low battery level when the computer cannot exit Hibernation ....... 17

Calibrating a battery ........................................................................................................................... 18

Step 1: Fully charge the battery ......................................................................................... 18

Step 2: Disable Hibernation and Sleep .............................................................................. 18

Step 3: Discharge the battery ............................................................................................ 19

Step 4: Fully recharge the battery ...................................................................................... 20

Step 5: Reenable Hibernation and Sleep .......................................................................... 20

Conserving battery power .................................................................................................................. 21

Storing a battery ................................................................................................................................. 22

Disposing of a used battery ................................................................................................................ 23

Replacing the battery ......................................................................................................................... 24

v

4 Shutting down the computer

Index ................................................................................................................................................................... 26

vi

1 Setting power options

Using power-saving states

The computer has two power-saving states enabled at the factory: Sleep and Hibernation.

When Sleep is initiated, the power lights blink and the screen clears. Your work is saved to memory,
letting you exit Sleep faster than exiting Hibernation. If the computer is in the Sleep state for an extended
period or if the battery reaches a critical battery level while in the Sleep state, the computer initiates
Hibernation.

When Hibernation is initiated, your work is saved to a hibernation file on the hard drive and the computer
turns off.

CAUTION: To prevent possible audio and video degradation, loss of audio or video playback

functionality, or loss of information, do not initiate Sleep or Hibernation while reading from or writing to
a disc or an external media card.

NOTE: You cannot initiate any type of networking connection or perform any computer functions while

the computer is in the Sleep state or in Hibernation.

Initiating and exiting Sleep

The system is set at the factory to initiate Sleep after 10 minutes of inactivity when running on battery
power and 25 minutes of inactivity when running on external power.

Power settings and timeouts can be changed using Power Options in Windows® Control Panel.

With the computer on, you can initiate Sleep in any of the following ways:

●

Close the display.

●

Click Start, and then click the Power button.

●

Click Start, click the arrow next to the Lock button, and then click Sleep.

You can exit Sleep in any of the following ways:

●

Press the power button.

●

If the display is closed, open the display.

●

Press a key on the keyboard.

●

Activate the TouchPad.

When the computer exits Sleep, the power lights turn on and your work returns to the screen where you
stopped working.

Using power-saving states 1

NOTE: If you have set a password to be required on wakeup, you must enter your Windows password

before your work will return to the screen.

Initiating and exiting Hibernation

The system is set at the factory to initiate Hibernation after 120 minutes of inactivity when running on
battery power, 1080 minutes (18 hours) of inactivity when running on external power, or when the battery
reaches a critical battery level.

Power settings and timeouts can be changed using Power Options in Windows Control Panel.

To initiate Hibernation:

▲

Press fn+f5.

– or –

a. Click Start, and then click the arrow next to the Lock button.

b. Click Hibernate.

To exit Hibernation:

▲

Press the power button.

The power lights turn on and your work returns to the screen where you stopped working.

NOTE: If you have set a password to be required on wakeup, you must enter your Windows password

before your work will return to the screen.

2 Chapter 1 Setting power options

Using the battery meter

The battery meter is located in the notification area, at the far right of the taskbar. The battery meter
allows you to quickly access power settings, view remaining battery charge, and select a different power
plan.

●

To display the percentage of remaining battery charge and the current power plan, move the pointer
over the battery meter icon.

●

To access Power Options, or to change the power plan, click the battery meter icon and select an
item from the list.

Different battery meter icons indicate whether the computer is running on battery or external power. The
icon also displays a message if the battery has reached a critical battery level.

To hide or display the battery meter icon:

1. Right-click the taskbar, and then click Properties.

2. Click the Notification Area tab.

3. Under System icons, clear the Power check box to hide the battery meter icon, or select the

Power check box to display the battery meter icon.

4. Click OK.

Using the battery meter 3

Using power plans

A power plan is a collection of system settings that manages how the computer uses power. Power
plans can help you conserve power or maximize performance.

You can change power plan settings or create your own power plan.

Viewing the current power plan

▲

Move the pointer over the battery meter icon in the notification area, at the far right of the taskbar.

– or –

Select Start > Control Panel > System and Maintenance > Power Options.

Selecting a different power plan

▲

Click the battery meter icon in the notification area, and then select a power plan from the list.

– or –

Select Start > Control Panel > System and Maintenance > Power Options, and then select a
power plan from the list.

Customizing power plans

1. Click the battery meter icon in the notification area and then click More power options.

– or –

Select Start > Control Panel > System and Maintenance > Power Options.

2. Select a power plan, and then click Change plan settings.

3. Change the Turn off the display and Put the computer to sleep timeout settings, as needed.

4. To change additional settings, click Change advanced power settings and make your changes.

4 Chapter 1 Setting power options