User's Manual

 Power Schemes Tab
The Power Schemes pull-down menu in the Power Options
Properties displays the selected preset power scheme.
To maximize battery power, use the Portable/Laptop
power scheme.
In Windows XP the processor's performance level depends
on the power scheme you select. You do not need to make
any further adjustments to set the performance level. Each
preset power scheme has different time-out settings for
entering standby mode, hibernate mode, turning off the
display, and turning off the hard drive. For more information
on power management options, see the Help and Support
Center.