Battery Packs

Discharging the Battery Pack

Disabling Hibernation

To fully discharge the battery pack, disable Hibernation temporarily.

To disable Hibernation:

»Select the Power Meter icon on the taskbar or access Power Options > Hibernate, and clear the Enable Hibernate support check box.

Discharging the Battery Pack

ÄCAUTION: If you plan to leave the notebook unattended during discharge, save your work before starting the discharge procedure.

After the battery light turns off, which indicates that the battery pack is fully charged, begin discharging the battery pack.

To fully discharge the battery pack:

1.Select the Power Meter icon on the taskbar, or select Start > Control Panel > Performance and Maintenance > Power Options > Power Schemes.

2.Write down the 3 settings in the Plugged In column and the 3 settings in the Running on Batteries column, so you can reset them after calibration.

3.Select the drop-down lists and set all 6 options in both columns to Never.

4.Select the OK button.

5.Disconnect the notebook from the external power source, but do not turn off the notebook.

6.Run the notebook on battery power until the battery pack is fully discharged. The battery light begins to blink when the battery pack has discharged to a low-battery condition. When the battery pack is fully discharged, the power/Standby light turns off and the notebook shuts down.

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Hardware Guide