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Using external AC power
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.
WARNING! Do not charge the computer battery while on board an aircraft.
External AC power is supplied through:
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An approved AC adapter
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An optional docking device or expansion product
Connect the computer to external AC power:
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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 CD or DVD.
When connecting to external AC power:
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The battery begins to charge.
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If the computer is turned on, the Battery Meter icon in the notification area changes appearance.
When disconnecting from external AC power:
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The computer switches to battery power.
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The display brightness is automatically decreased to save battery life. To increase display
brightness, press the Increase Screen Brightness key or reconnect the AC adapter.
Using external AC power 43