Toshiba PORTEGE R500 Series, User Manual

Page: 122 / 202

6-8 User’s Manual
PORTÉGÉ R500
4. LAN
■ Built-in LAN Enable/Disable function (BIOS Setup) (please refer to
the BIOS Setup Program section in Chapter 7, HW Setup & BIOS
Setup .)
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 and external
disk(c) drives, for example, optical disc and floppy diskette drive.
■ 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
Refer to User Information Guide about Charging time.