HP OmniBook xe3-gf - Notebook PC Reference Manual page 119

If the computer has a short operating time
• Try conserving power by setting power timeouts to shorter periods. In Windows, you
can adjust these settings in the Power Management (or Power Options) Properties
window in Control Panel.
• If you are running any applications with an automatic save feature, such as MS Word
for Windows, you can extend the save time or disable this feature to reduce hard disk
access.
• If the operating time has become shorter and the battery is more than a year or two
old, you may need to replace the battery.
• Set the display brightness to the lowest comfortable level.
• Heavy modem use can affect battery operating time.
• PC card use can affect battery operating time.
• The battery gauge may need to be calibrated. Restart the computer, press F6 when the
HP logo appears, and follow the instructions that appear onscreen. This process
calibrates the battery, and requires four to five hours. You cannot use the computer
during this process.
If the battery doesn't charge
• Make sure the AC adapter is plugged into the power source and that the light on the
adapter is on.
• If you're using a power strip, remove the AC adapter from the power strip and plug it
directly into a wall outlet.
• Make sure the battery is fully installed and locked in place.
• Turn off the computer, then make sure the battery contacts are clean and that the AC
adapter cables are fully plugged in.
• Move the computer away from any nearby heat source. Unplug the AC adapter and
allow the battery to cool down. An elevated battery temperature prevents charging.
• If another battery is available, try it.
• If another AC adapter is available, try it.
If the Time Remaining percentage for the battery is not correct
• The Time Remaining value on the power (battery) icon is an estimate based on your
current usage, not a precise value.
Solving Problems with Your Computer
Troubleshooting Techniques
Reference Guide 119