Power
How to Calibrate
To calibrate a battery pack, you must fully charge, fully discharge, and then fully recharge the battery pack.
Step 1: Charging the Battery Pack
Charge the battery pack while the computer is on. To charge the battery pack:
ÅWARNING: Do not charge the computer battery pack onboard aircraft. Charging the battery pack may damage aircraft electronic systems.
1.Insert the battery pack into the computer.
2.Connect the computer to the AC adapter, an optional power adapter, or an optional expansion product, and then plug the adapter or device into external power. (The computer battery light is turned on.)
3.Leave the computer connected to external power until the battery pack is fully charged. (The computer battery light is turned off.)
Step 2: Discharging the Battery Pack
ÄCAUTION: To prevent loss of information, save your work before beginning an unattended discharge procedure.
The computer must remain on throughout the discharge process. The battery pack can discharge whether or not you are using the computer, but the battery pack will discharge faster if the computer is in use.
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