User's Manual
User’s Manual 6-10
Power and Power-Up Modes
■ Screen brightness
■ Cooling Method
■ System standby
■ System Hibernation
■ Monitor Power off
■ HDD Power off
■ How often and how long you use the hard disk, optical disc and the
floppy disk drive.
■ 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 LCD display panel 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.
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
Extending battery life
To maximize the life of your battery pack:
■ At least once a month, disconnect the computer from a power source
and operate it on battery power until the battery pack fully discharges.
Before doing so, follow the steps below.
Battery type State and Retention Time
Battery pack (4700mAh)
about 5 days (Standby Mode)
about 60 days (Boot mode)
Slice Expansion Battery (4000mAh)
about 5 days (Standby Mode)
about 50 days (Boot mode)
RTC battery
30 days
1. Turn off the computer’s power.
2. Disconnect the AC adaptor and turn on the computer’s power. If it
does not turn on go to step 4.