HP Pavilion xu100 HP OmniBook 500 - Reference Guide Revision 3 - Page 59

To maximize processor speed

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Batteries and Power Management Using Battery Power • If you work with an application that uses the serial port or an I/O PC Card, exit the application when you finish using it. • Install another battery-see "To use additional batteries" on page 58. • If your main battery is rated at 14.8 volts (check its label), purchase a replacement main battery, which is rated at 11.1 volts. In addition, follow these suggestions to extend the life of your batteries. • Do not leave batteries unused for long periods. If you have more than one, rotate them. • If you normally use AC power, make a practice of using the battery as your power source at least once a week. • Unplug the AC adapter when the computer is not in use. • To preserve the life of a battery, be sure to charge it regularly. • For long-term storage, the battery must be charged 20-50% to minimize capacity loss by self-discharge and to avoid deterioration of performance. Storing a fully charged battery can cause higher self-discharge and reduce its discharge capacity-even after recharging-as compared to a battery stored when charged 20-50%. • To maintain maximum battery capacity and accuracy of the battery gauge, perform this procedure about once a month: 1. Charge the battery to 100%. 2. Disconnect the AC adapter, and use the computer until the battery is fully discharged and the computer goes into hibernation. 3. Connect the AC adapter and charge the battery to 100% with no power interruptions. To maximize processor speed If your computer contains a multispeed processor with Intel SpeedStep Technology, the processor can automatically switch to lower, power-saving speeds or to higherperformance speeds according to its workload. See "How the computer manages power automatically" on page 52. Reference Guide 59

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Batteries and Power Management
Using Battery Power
Reference Guide
59
•
If you work with an application that uses the serial port or an I/O PC Card, exit the
application when you finish using it.
•
Install another battery—see “To use additional batteries” on page 58.
•
If your main battery is rated at 14.8 volts (check its label), purchase a replacement
main battery, which is rated at 11.1 volts.
In addition, follow these suggestions to extend the life of your batteries.
•
Do not leave batteries unused for long periods. If you have more than one, rotate
them.
•
If you normally use AC power, make a practice of using the battery as your power
source at least once a week.
•
Unplug the AC adapter when the computer is not in use.
•
To preserve the life of a battery, be sure to charge it regularly.
•
For long-term storage, the battery must be charged 20–50% to minimize capacity loss
by self-discharge and to avoid deterioration of performance. Storing a fully charged
battery can cause higher self-discharge and reduce its discharge capacity—even after
recharging—as compared to a battery stored when charged 20–50%.
•
To maintain maximum battery capacity and accuracy of the battery gauge, perform
this procedure about once a month:
1. Charge the battery to 100%.
2.
Disconnect the AC adapter, and use the computer until the battery is fully
discharged and the computer goes into hibernation.
3.
Connect the AC adapter and charge the battery to 100% with no power
interruptions.
To maximize processor speed
If your computer contains a multispeed processor with Intel SpeedStep Technology, the
processor can automatically switch to lower, power-saving speeds or to higher-
performance speeds according to its workload. See “How the computer manages power
automatically” on page 52.