Conserving Battery Power - Texas Instruments TravelMate 4000M User Manual

Conserving Battery Power

The following tips can help you prolong the lift of a battery charge:
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Keep the LCD at the lowest comfortable brightness level. Reducing
brightness even a small amount can significantly reduce power
consumption and increase operating time.
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Press Standby to put the computer into standby mode whenever you
are not actively using the computer. Press Standby again to resume
normal operation.
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Press Standby after writing to the hard disk to stop the disk rotation.
Then return to operation by pressing Standby again.
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Use the Power Savings items in Setup to turn off the LCD when not in
use and to ensure that the hard disk is not powered for longer periods
than necessary.
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You can choose between three CPU speeds: high, medium, and low.
The computer uses less power at lower CPU speeds. When using an
application that is not CPU-intensive (for example, many word
processing programs), press Ctrl-Alt- to reduce the CPU speed. To
increase the speed again, press Ctrl-Alt- . This feature is not
available on DX4 models.
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You can minimize the number of times the computer needs to access
the hard disk by using disk caches or RAM disks.
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