Quick Reference Guide 17FILE LOCATION: J:\DL\DL044469\DTP\D8854eb0.fmD E L L C O N F I D E N T I A L – P R E L I M I N A R Y 1 / 2 7 / 0 5 – F O R P R O O F O N LYRecalibrating a Battery Using the System Setup Utility1 Connect the computer to an electrical outlet.2 Turn on (or restart) the computer.3 When the DELL logo appears, press immediately. If you wait too long and the logo forthe Microsoft® Windows® operating system appears, continue to wait until you see theWindows desktop. Then shut down your computer and try again.NOTE: For information about a specific item on a system setup screen highlight the item and see theHelp area on the screen.4 Using the down-arrow key, select Battery Info.• The Battery Recalibration Process screen appears, showing the functions (Charge orDischarge) on the left of the screen, and the Battery Info charge status on the right of thescreen.• The AC adapter begins charging the battery. The Charge Battery to Full option ishighlighted on the left of the screen. The percent charged information is displayed on theright of the screen.• The AC adapter charges the battery until the battery gauge states 100% charged. Thebattery light turns off after the battery is fully charged.5 Ensure that the battery light is off.6 Disconnect the computer from the electrical outlet.The battery discharges until the battery gauge states 0% charged. The Discharge Battery toEmpty option is highlighted on the left of the screen. When the battery is completelydischarged, the computer automatically turns off.7 Connect the computer to the electrical outlet.8 Allow the AC adapter to charge the battery until the battery light turns off.NOTE: You can operate your computer while the battery is charging. However, do not operate yourcomputer using battery power until the battery is fully charged.Removing a BatteryCAUTION: Before performing these procedures, remove all peripheral connectors such as phone cord,network cable, external monitor cable, or USB cables and devices.1 Ensure that the computer is turned off and disconnected from the electrical outlet.2 If the computer is connected to the USB port replicator, disconnect it. See thedocumentation that came with your USB port replicator for instructions.