Power and Power-Up Modes

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:

■CPU processing speed (Depends on the model you purchased).

■Screen brightness.

■Cooling method (Depends on the model you purchased).

■System Standby Mode.

■System Hibernation.

■Monitor power off.

■How often and how long you use the hard disk, optical disc.

■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.

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.

Battery pack

Approximately 1.5 days

(3cell, 6cell, 9cell)

(Standby Mode, 3-cell)

 

Approximately 3 days

 

(Standby Mode, 6-cell)

 

Approximately 5 days

 

(Standby Mode, 9-cell)

 

Approximately 1 month

 

(Shut down mode, All type of battery packs)

RTC battery

Approximately 1 month

 

 

User’s Manual

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