Dell LATITUDE D400 User Manual download pdf (Page 64)

Using a Battery

Battery Performance

Checking the Battery Charge

Charging the Battery

Removing a Battery

Installing a Battery

Storing a Battery

Battery Performance

NOTE: Batteries for portable computers are covered only during the initial one-year period of the limited warranty for

your computer. For more information about the Dell warranty for your computer, see the System Information Guide or

other documents that came 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 the 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.

Battery operating time varies depending on operating conditions. Operating time is significantly reduced when you perform

operations including, but not limited to, the following:

NOTE: It is recommended that you connect your computer to an electrical outlet when writing to a CD.

Using optical drives, especially DVD and CD-RW drives

Using wireless communications devices, PC Cards, 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

You can check the battery charge before you insert the battery into the computer. You can also set power management

options to alert you when the battery charge is low

CAUTION: Using an incompatible battery may increase the risk of fire or explosion. Replace the battery

only with a compatible battery purchased from Dell. The lithium-ion battery is designed to work with your

Dell™ computer. Do not use batteries from other computers with your computer.

CAUTION: Do not dispose of batteries with household waste. When your battery no longer holds a charge,

call your local waste disposal or environmental agency for advice on disposing of a lithium-ion battery.

See the battery disposal instructions in your System Information Guide.

CAUTION: Misuse of the battery may increase the risk of fire or chemical burn. Do not puncture,

incinerate, disassemble, or expose the battery to temperatures above 65°C (149°F). Keep the battery

away from children. Handle damaged or leaking batteries with extreme care. Damaged batteries may leak

and cause personal injury or equipment damage.

Checking the Battery Charge

The Microsoft® Windows® power meter window and icon, the battery charge gauge and health gauge, and the low-

battery warning provide information on the battery charge.

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Dell LATITUDE D400 User Manual Page 64