Power
Calibrating a Battery Pack
When to Calibrate
Even if a battery pack is heavily used, it should not be necessary to calibrate it more than once a month. It is not necessary to calibrate a new battery pack before first use. Calibrate the battery pack under the following conditions:
■When battery charge displays seem inaccurate.
■When you observe a significant change in battery run time.
■When the battery pack has not been used for one month or more.
How to Calibrate
To calibrate a battery pack, you must fully charge, fully discharge, then fully recharge the battery pack.
Charging the Battery Pack
Charge the battery pack while the notebook is in use. To charge the battery pack:
1.Insert the battery pack into the notebook. For instructions, see “Replacing a Battery Pack” later in this chapter.
2.Connect the notebook to external power. (The battery light is on and amber as the battery pack charges.)
3.Leave the notebook connected to external power until the battery pack is fully charged. (The battery light turns green.)
Discharging the Battery Pack
Before you begin the full discharge, disable Hibernation. To disable Hibernation, select Start > Control Panel > Performance and Maintenance > Power Options > Hibernate tab. Then clear the Enable Hibernation check box.
Startup and Reference |
