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The Power Saver Properties window appears. The remaining battery charge is indicated on the left side of the dialog box. With repeated discharges and recharges, the battery’s capacity gradually decreases. A frequently used older battery does not power the computer for as long as a new battery, even when both are fully charged. TECHNICAL NOTE: The computer drains the battery faster at low temperatures. Check your remaining charge frequently if you are working in temperatures below 50 degrees Fahrenheit. The computer calculates the remaining battery charge based on your current rate of power use and other factors such as the age of the battery. Mobile Computing Mobile Computing Monitoring battery power What to do when the main battery runs low When the main battery runs low you can: . Plug the computer into an external power source and recharge the main battery . Place the computer into Hibernation mode and replace the main battery with a charged spare . Connect the computer to an optional high capacity battery (if available for your computer) . 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” on page 106. 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. Mobile Computing Mobile Computing Monitoring battery power 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 . 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 usin...

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