Battery performance – Dell Precision M20 User Manual
Page 9
Dell Precision Mobile Workstation M20 Quick Reference Guide
9
4
Open the computer display and press the power button to turn on the computer.
NOTE:
Do not connect the computer to the docking device until the computer has been turned on and
shut down at least once.
Battery Performance
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions
located in the Product Information Guide.
NOTE:
Batteries for portable computers are covered only during the initial 1-year period of the limited
warranty for your computer. For more 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:
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.
power button