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User's Manual
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:
❑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
❑How often and how long you use the hard disk,
❑How much charge the battery contained to begin with.
❑How you use optional devices, such as a PC card, to which the battery supplies power.
❑Enabling Standby mode conserves battery power if you are frequently turning the computer off and on.
❑Where you store your programs and data.
❑Closing the display when you are not using the keyboard saves power.
❑Operating time decreases at low temperatures.
❑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.
