Using external AC power
WARNING! Do not charge the computer battery while you are onboard aircraft.
WARNING! To reduce potential safety issues, use only the AC adapter provided with the computer,
a replacement AC adapter provided by HP, or a compatible AC adapter purchased from HP.
NOTE: For information on connecting to AC power, see the Setup Instructions poster provided in
the computer box.
External AC power is supplied through an approved AC adapter or an optional docking or expansion
device.
Connect the computer to external AC power under any of the following conditions:
●
When charging or calibrating a battery
●
When installing or modifying system software
●
When writing information to a CD, a DVD, or a BD (select models only)
●
When running Disk Defragmenter
●
When performing a backup or recovery
When you connect the computer to external AC power, the following events occur:
● The battery begins to charge.
●
If the computer is turned on, the power meter icon in the notification area, at the far right of the
taskbar, changes appearance.
When you disconnect external AC power, the following events occur:
●
The computer switches to battery power.
●
The display brightness is automatically decreased to save battery life.
48 Chapter 6 Power management
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