Dell PP12S manual Checking the Battery Charge

NOTE: Because the battery may not be fully charged, use the AC adapter to connect your new Tablet-PC to an electrical outlet the first time you use the Tablet-PC. For best results, operate the Tablet-PC with the AC adapter until the battery is fully charged. To view battery charge status, check the Power Meter in Power Options (see "Accessing Power Options Properties" on page 79).

Battery operating time varies depending on operating conditions. You can use an optional battery slice (see "Battery Slice (Optional)" on page 217) to significantly increase operating time.

NOTE: Battery operating time (the time the battery can hold a charge) decreases over time. Depending on how often the battery is used and the conditions under which it is used, you may need to purchase a new battery during the life of your Tablet-PC.

NOTE: It is recommended that you connect your Tablet-PC to an electrical outlet when writing to a CD or DVD.

Operating time is significantly reduced when you perform operations including, but not limited to, the following:

•Using optical drives.

•Using wireless communications devices, ExpressCards, media memory cards, or USB devices.

•Using high-brightness display settings, 3D screen savers, or other power- intensive programs such as complex 3D graphics applications.

•Running the Tablet-PC in maximum performance mode. See "Configuring Power Management Settings" on page 79 for information about accessing Windows Power Options Properties or Dell QuickSet, which you can use to configure power management settings.

You can check the battery charge before you insert the battery into the Tablet-PC. You can also set power management options to alert you when the battery charge is low.

Checking the Battery Charge

The following features provide information on the battery charge:

•Dell QuickSet Battery Meter

•Microsoft Windows Power Meter window and Power icon ( in Windows Vista and in Windows XP)

•Battery charge gauge and health gauge

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Setting Up and Using Your Tablet-PC