Using a battery, Battery performance, Checking the battery charge – Dell Latitude 120L User Manual
Page 9: Dell™ quickset battery meter
Using a Battery
Configuring Power Management Settings
Battery Performance
For optimal computer performance and to help preserve BIOS settings, operate your Dell™ portable computer with the main battery installed at all times. 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:
l
Using optical drives
l
Using wireless communications devices, ExpressCards, or USB devices
l
Using high-brightness display settings, 3D screen savers, or other power-intensive programs such as 3D games
l
Running the computer in maximum performance mode
Checking the Battery Charge
The Dell QuickSet Battery Meter, 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.
Dell™ QuickSet Battery Meter
If Dell QuickSet is installed, press <Fn><F3> to display the QuickSet Battery Meter window. The Battery Meter window displays status, charge level, and
charge completion time for the battery in your computer. For information about your computer's battery, click the tabs, labeled as follows:
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.
NOTE:
It is recommended that you connect your computer to an electrical outlet when writing to a CD or DVD.
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.
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 battery is designed to work with your Dell computer. Do not use a battery 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 "Battery Disposal" in the Product 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.
NOTE:
Dell QuickSet may not be available on your computer.