■While a battery pack is being calibrated, it is fully charged, then fully discharged.

❏A battery calibration icon in the taskbar displays an Up arrow during the charge phase and a Down arrow during the discharge phase.

❏A calibration cannot resume if the calibration is stopped or if the computer is shut down during a calibration. An interrupted calibration must be restarted.

❏After calibration, a battery pack must be charged before it can be used to run the computer.

■The calibration utility calibrates one battery pack at a time and can run in the background as you use the computer or overnight.

CAUTION: To prevent loss of work, ensure that the computer remains connected to AC power throughout a calibration.

Running a Calibration

1.If you are checking the calibration of a battery pack— Insert the battery pack into the computer battery bay or a MultiBay.

If you are calibrating a battery pack—Insert the battery pack into the computer battery bay or a MultiBay. Then connect the computer to external power with the AC adapter or dock the computer in a docking base that is connected to external power.

2.Access the Battery Calibration tab.

■In Windows 95 select StartÆSettingsÆControl PanelÆPowerÆBattery Calibration tab.

■In Windows 98 select StartÆSettingsÆControl PanelÆPower ManagementÆBattery Calibration tab.

■In Windows NT 4.0 select StartÆSettingsÆControl PanelÆCompaq PowerÆBattery Calibration tab.

Managing Power 5-11