6-10
User's Manual
POWER
2. With repeated discharges and recharges, the battery’s
capacity will gradually decrease. Therefore, an often
used, older battery will not operate for as long as a new
battery even when both are fully charged. In this case,
Power Save Modes window in TOSHIBA Power Saver
will indicate a 100% charge for both the old and new
battery, but the displayed estimated time remaining will
be shorter for the older battery.
Maximizing battery operating time
A battery’s usefulness depends on how long it can supply power on a single
charge.
How long the charge lasts in a battery depends on:
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❖How you configure the computer (for example, whether you enable battery-
power saving options). The computer provides a battery save mode, which can
be set in TOSHIBA Power Saver, to conserve battery power. This mode has
the following options:
• Processor speed
• Monitor brightness
• System standby
• System hibernate
• Turn off monitor
• Turn off hard disks
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❖How often and how long you use the hard disk, CD/DVD-ROM and the
diskette drive.
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❖How much charge the battery contained to begin with.
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❖How you use optional devices, such as a PC card, to which the battery
supplies power.
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❖Enabling Standby mode conserves battery power if you are frequently turning
the computer off and on.
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❖Where you store your programs and data.
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❖Closing the display when you are not using the keyboard saves power.
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❖Operating time decreases at low temperatures.
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❖The condition of the battery terminals. Make sure the battery terminals stay
clean by wiping them with a clean dry cloth before installing the battery pack.