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Using a Battery 45
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Using a Battery
Battery Types
See "Specifications" on page 131 for information on supported batteries.
Battery Performance
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide
.
NOTE: For information about the Dell warranty for your computer, see the Product Information Guide or
separate paper warranty document that shipped with your computer.
For optimal computer performance and to help preserve BIOS settings, operate your Dell™
portable computer with the main battery installed at all times. Use a battery to run the
computer when it is not connected to an electrical outlet. One battery is supplied as standard
equipment in the battery bay.
NOTE: Because the battery may not be fully charged, use the AC adapter to connect your new computer
to an electrical outlet the first time you use the computer. For best results, operate the computer with the
AC adapter until the battery is fully charged. To view battery charge status, access the Control Panel→
Power Options→ Power Meter tab.
Battery operating time varies depending on operating conditions.
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 computer.
Operating time is significantly reduced when you perform operations including, but not limited
to, the following:
•Using optical drives
• Using wireless communications devices, ExpressCards, or USB devices
• Using high-brightness display settings, 3D screen savers, or other power-intensive programs
such as 3D games
• Running the computer in maximum performance mode (see page 40)
NOTE: It is recommended that you connect your computer to an electrical outlet when writing to a CD
or DVD.
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