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Maximizing battery operating time, Retaining data with power off – Toshiba Qosmio G40 User Manual

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User’s Manual

6-9

Qosmio G40

Maximizing battery operating time

A battery’s usefulness depends on how long it can supply power on a
single charge, while how long the charge lasts in a battery depends on:

Processor speed

Screen brightness

System Sleep Mode

System Hibernation Mode

Display power off period

Hard disk drive power off period

How often and for how long you use the hard disk drive, optical disc and
floppy disk drives.

How much charge the battery contained to begin with.

How you use optional devices, such as a PC Cards, to which the
battery supplies power.

Whether you enable Sleep Mode, which can conserve battery power if
you are frequently turning the computer off and on.

Where you store your programs and data.

Whether you close the display panel when you are not using the
keyboard - closing the display saves power.

The environmental temperature - operating time decreases at low
temperatures.

The condition of the battery terminals - you should always ensure the
terminals stay clean by wiping them with a clean dry cloth before
installing the battery pack.

Retaining data with power off

When you turn off your computer with fully charged batteries, the batteries
retain data for the following approximate time periods.

Retention Time

Battery type

State and Retention Time

Battery Pack (7050mAh)

about 5 days (Sleep Mode)
about 25 days (Boot Mode)

RTC battery

30 days