- Computers & electronics
- Computers
- Notebooks
- HP (Hewlett-Packard)
- Compaq Presario,Presario 2275
- Quick guide
Battery Packs and Power Management. Compaq Compaq Presario,Presario 2202, Compaq Presario,Presario 2235, Compaq Presario,Presario 2212, Compaq Presario,Presario 2243, Compaq Presario,Presario 2256, Compaq Presario,Presario 2272, Compaq Presario,Presario 2267, Compaq Presario,Presario 2290, Compaq Presario,Presario 2257, Compaq Presario,Presario 2268
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3
Battery Packs and Power
Management
Using Battery Power
For information about how your notebook regulates power consumption and how you can manually reduce power consumption and extend the life of the notebook battery, see the “Battery Packs and Power Management” chapter in the
Reference Guide on the Documentation CD included with your notebook.
Startup Guide 3–1
Battery Packs and Power Management
To Check Battery Status
From the battery status light
»
Check the battery status light on the notebook.
From the Windows taskbar
The Windows taskbar can display a power icon that provides detailed battery status information (see Windows Help for details). The icon resembles a battery when a battery pack is the notebook’s sole source of power.
■
Place the pointer over the power icon to display the remaining battery charge. This value is shown as either a percentage of charge remaining or as time remaining.
■
Select the power icon to open the Battery Meter window.
From the Windows Control Panel
»
Select Start > Control Panel > Performance and
Maintenance > Power Options, then select the Power Meter tab to see the battery status. The Alarms and Advanced tabs provide additional power information options.
On the battery pack
1. Remove the battery pack from the notebook. See the
Started with Your Notebook” chapter in this guide.
2. Press the contact pad on the side of the battery pack.
3–2 Startup Guide
Battery Packs and Power Management
To Respond to a Low-Battery Warning
The notebook automatically alerts you when the battery power drops to a critically low level. The notebook first emits a high-pitched beep or displays a warning message. Then, if you do not restore power within a short time, the notebook goes into
Hibernation.
■
■
After the notebook enters Hibernation in this way, you will not be able to turn it on again until you restore power by using one of the following procedures:
Replace the battery pack with a charged one.
Plug in the AC adapter.
✎
If you plug in the AC adapter, you can continue to work while your battery pack recharges.
To Recharge the Battery Pack
Ä CAUTION: The AC adapter is normally warm when plugged into an
AC outlet. The notebook is normally warm while recharging. Do not recharge the notebook in a briefcase or other confined space, or the battery pack could overheat.
»
Plug the AC adapter into the notebook.
Charging can take several hours. If you continue working while the battery pack charges, the charging time may increase.
The operating time for a fully charged battery pack depends on the notebook model, power management settings, and level of use.
Startup Guide 3–3
Battery Packs and Power Management
To Get the Most from Your Battery Packs
Follow these suggestions to make your battery power last as long as possible:
■
Plug in the AC adapter, especially when using a CD-ROM or
DVD drive, 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 notebook in Standby when you will not be using it for a short while.
■
Put the notebook in Hibernation whenever you want to save your current session but will not be using the notebook for a day or more.
■
Set the automatic timeout settings to emphasize saving power. If your notebook has a multispeed processor, use the lower speed on battery power (the default settings conserve battery power).
■
If your notebook has a wireless on-off button, turn off the wireless function when you are not using it. Press the wireless on-off button to turn off the light.
■
If you have a PC Card, such as a network card, remove it when you are not using it. Some PC Cards use significant power even while they are inactive.
■
If you work with an application that uses the serial port or a
PC Card, exit the application when you finish using it.
3–4 Startup Guide
Battery Packs and Power Management
■
■
In addition, follow these suggestions to extend the life of your battery packs:
■
Do not leave battery packs unused for long periods. If you have more than one, rotate them.
Unplug the AC adapter when the notebook is not in use.
If the notebook will be unused and unplugged for more than
2 weeks, remove and store the battery pack.
Ä
CAUTION: To prevent damage to the battery pack, do not expose it to high temperatures for extended periods of time.
■
■
■
High temperatures accelerate the self-discharge rate of a stored battery pack. To prolong the charge of a stored battery pack, place it in a cool, dry location.
To maintain the accuracy of battery charge displays, calibrate a battery pack that has been stored for one month or more before using it.
Avoid using or charging battery packs at high temperatures.
Startup Guide 3–5
Battery Packs and Power Management
Disposing of a Used Battery Pack
Å
WARNING: There is a risk of fire and chemical burn if a battery pack is handled improperly. Do not disassemble, crush, or puncture a battery pack or short the contacts on a battery pack. Do not expose a battery pack to temperatures higher than 60°C (140°F) or dispose of a battery pack in water or fire.
When a battery pack has reached the end of its useful life, do not dispose of it in general household waste.
■
In Europe, dispose of or recycle battery packs by using the public collection system or by returning them to your service partner.
■
In other regions, refer to the Worldwide Telephone Numbers booklet, included with the notebook, to contact your service partner and request information about battery pack disposal.
For more information about battery pack precautions and disposal and the complete text of governmental agency notices, refer to the
Regulatory and Safety Notices guide on the Documentation CD.
3–6 Startup Guide
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Table of contents
- 3 Contents
- 5 Getting Started with Your Notebook
- 5 Important Safety Information
- 6 Identifying Parts of the Notebook
- 7 Front Panel and Right Panel Components
- 8 Left Panel and Back Panel Components
- 9 Bottom Panel Components
- 10 Status Lights
- 12 Setting Up Your Notebook
- 12 Step 1: Insert the Battery Pack
- 13 Step 2: Connect AC Power
- 14 Step 3: Connect a Phone Line
- 15 Step 4: Turn On the Notebook
- 16 Step 5: Set Up Windows
- 16 Using the Documentation CD
- 17 Basic Operation
- 17 Operating Your Notebook
- 18 Default Power Settings
- 19 To Reset the Notebook
- 19 To Change the Boot Device
- 20 To Use the TouchPad
- 21 To Use the Tap to Click Function of the TouchPad
- 22 To Use the Function Hot Keys
- 23 Using CDs or DVDs
- 23 To Play DVD Movies
- 23 To Write to DVD Media (Select Models Only)
- 24 To Connect a TV to Your Notebook (Select Models Only)
- 25 Battery Packs and Power Management
- 25 Using Battery Power
- 26 To Check Battery Status
- 27 To Respond to a Low-Battery Warning
- 27 To Recharge the Battery Pack
- 28 To Get the Most from Your Battery Packs
- 30 Disposing of a Used Battery Pack
- 31 Troubleshooting
- 31 Troubleshooting Your Notebook
- 32 Display Problems
- 32 If the Notebook Is On, But the Screen Is Blank
- 32 If the Screen Is Difficult to Read
- 32 If an External Display Does Not Work
- 33 Hard Drive Problems
- 33 If the Notebook Hard Drive Does Not Spin
- 33 If Files Are Corrupted
- 33 Keyboard and Pointing Device Problems
- 33 If the Pointer Is Difficult to Control
- 34 If the TouchPad Does Not Work
- 34 Performance Problems
- 34 If the Notebook Stops Responding
- 35 Power and Battery Pack Problems
- 35 If the Notebook Turns Off Immediately After It Turns On
- 35 If the Notebook Keeps Beeping
- 35 If the Battery Pack Does Not Charge
- 36 Startup Problems
- 36 If the Notebook Does Not Respond When You Turn It On
- 36 If the Notebook Will Not Boot from Battery Power
- 37 Configuring Your Notebook
- 37 To Run the BIOS Setup Utility
- 39 Updating Software and Drivers from the Web
- 39 Using System Recovery Features
- 40 Safeguarding Your Data
- 41 Operating System (OS) CD Repair
- 42 OS CD Reinstall
- 43 Reinstalling Drivers
- 43 Restoring Software Applications
- 44 Index