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How much you use the hard disk, optical 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 sleep or Hibernation, which saves power when you turn off the computer and turn it back on again . Use the Microsoft® power-saving option plans These power-saving options control the way in which the computer is configured. By using them, you can increase the length of time you can use the computer before you need to recharge the battery. Microsoft® has combined these options into preset Power Plans. 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 Plan and discuss each power-saving option. Mobile Computing 109 Monitoring main battery power Power Plans You can choose a predefined Power Plan or select your own combination of power options. To do this: 1 Click Start, Control Panel, Mobile PC, and then Power Options. The Windows® Power Options window appears. (Sample Image) Windows® Power Option window 2 Select an appropriate plan for your work environment or create your own custom plan. 3 Click Create a Power Plan to set up a new plan. To edit a plan or to edit advanced settings, continue to the following NOTE steps. 4 Click Change Plan Settings to choose the plan you want to edit. This screen allows you to change basic settings. 5 Click Change Advanced Settings to access settings for battery notification levels, hard drive power save time, etc. You can click on the plus signs to expand each item and to see what settings are available for each item. 6 Click Save Changes to save the plan changes you have performed. Mobile Computing 110 Monitoring main battery power By default the three power plans Balanced, Power saver, and High performance are satisfactory for most people and do not need to be edited. The Power saver plan is the best used for maximum battery time. The High performance plan will give you the shortest battery time, but the highest performance from your computer. The Balanced plan is a compromise between battery time and performance. Using a hot key to set the Power Plan You may use a hot key to set the Power Profile. To set the Power Plan: 1 Press Fn and F2 simultaneously to display the Power Plan hot key card. (Sample Image) Power Profile hot key card 2 While continuing to press Fn, press F2 until you select the desired Power Profile. The Power Profile options are: Balanced, Power saver, and High Performance. 3 Release the Fn key. The hot key card disappears. You are now in the selected mode. Mobile Computing 111 Changing the main battery Changing the main battery When your main battery has run out of power, you have two options: plug in the AC adaptor or install a ...

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