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Save your work and turn off the computer If you do not manage to do any of these things before the main battery completely runs out of power, the computer automatically enters Hibernation mode and turns itself off. Hibernation mode keeps track of where you were, so that when you turn on the power again, you can continue where you left off. If you have Hibernation mode enabled (the default), the computer copies the details of your open programs and files to the hard disk before shutting down. For more information on using Hibernation, see “Using Hibernation mode” on page 98. Setting battery alarms You can set two alarms. Each alarm can be set to alert you when a specified percentage of remaining battery power has been reached. You can set how the warning occurs: sound an alarm, display a message, both, or none. You can also set the computer to enter Standby mode or Hibernation mode or to completely power down when the alarm goes off. To change the default alarm settings: 1 Click Start, Control Panel, Performance and Maintenance, and then Toshiba Power Saver. 2 Click the Setup Action tab. 3 Configure the Alarm settings to suit your needs. Conserving battery power How long a fully charged battery pack lasts when you are using the computer depends on a number of factors, such as: . How the computer is configured Mobile Computing Mobile Computing 113 . How much you use the hard disk, DVD-ROM or multifunction drive, diskette drives, or other optional devices . Where you are working, since operating time decreases at low temperatures There are various ways in which you can conserve power and extend the operating time of your battery: . Enable Standby or Hibernation, which saves power when you turn off the computer and turn it back on again . Use Toshiba’s power-saving options These power-saving options control the way in which the computer is configured. By using them, you can greatly increase the length of time you can use the computer before you need to recharge the battery. Toshiba has combined these options into preset Power Profiles. Using one of these profiles lets you choose between maximum power savings and peak system performance. You may also set individual power-saving options to suit your own needs. The following sections describe how to choose a Power Profile and discuss each power-saving option. Power Profiles You can choose a predefined Power Profile or select your own combination of power management options. To do this: 1 Click Start, Control Panel, Performance and Maintenance, and then Toshiba Power Saver. Mobile Computing Mobile ComputingMonitoring main battery power The TOSHIBA Power Saver Properties window appears. Sample TOSHIBA Power Saver Properties window 2 Select an appropriate profile for your work environment or create your own custom profile. By changing the options that appear in the Power Saver Properties dialog box and clicking OK, you can reconfigure that function. You may choose a pow...

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