User Manual

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AC adapter
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Optional docking or expansion device
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Optional power adapter purchased as an accessory from HP
Resolving a low battery level when no power source is available
Save your work and shut down the computer.
Resolving a low battery level when the computer cannot exit Hibernation
1. Connect the AC adapter to the computer and to external power.
2. Exit Hibernation by pressing the power button.
Running on AC power
For information about connecting to AC power, refer to the quick setup instructions provided in the computer
box.
The computer does not use battery power when the computer is connected to AC power with an approved AC
adapter or an optional docking/expansion device.
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.
Connect the computer to AC power under any of the following conditions:
WARNING! Do not charge the computer battery while you are aboard aircraft.
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When charging or calibrating a battery
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When installing or modifying system software
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When writing information to a disc (select models only)
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When performing a backup or recovery
When you connect the computer to AC power:
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The battery begins to charge.
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The screen brightness increases.
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The power meter icon on the Windows desktop changes appearance.
When you disconnect AC power:
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The computer switches to battery power.
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The screen brightness automatically decreases to save battery life.
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The power meter icon on the Windows desktop changes appearance.
Troubleshooting power problems
Test the AC adapter if the computer exhibits any of the following symptoms when it is connected to AC
power:
ENWW Running on AC power 33