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HP ZBook x2 G4 Detachable Workstation User Manual Page 62

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WARNING! Do not charge the computer battery while you are aboard aircraft.
Connect the computer to external power under any of the following conditions:
●
When charging or calibrating a battery
●
When installing or updating system software
●
When updating the system BIOS
●
When writing information to a disc (select products only)
●
When running Disk Defragmenter on computers with internal hard drives
●
When performing a backup or recovery
When you connect the computer to external power:
●
The battery begins to charge.
●
The screen brightness increases.
●
The Power icon changes appearance.
When you disconnect external power:
●
The computer switches to battery power.
●
The screen brightness automatically decreases to conserve battery charge.
●
The Power icon changes appearance.
Managing power for the keyboard base
The keyboard base runs on battery power whenever it is not plugged into external AC power. Battery life
varies, depending on use and whether the backlight is used. The keyboard also supports sleep state.
Viewing battery charge
The Keyboard battery icon is located on the Windows taskbar. The icon allows you to quickly view the
remaining battery charge.
To view the remaining battery charge, select the Keyboard battery icon .
NOTE: The keyboard button light also provides information about battery status. See Keyboard connectors,
button, and status light on page 11.
Resolving a keyboard low battery level
To charge the keyboard, use one of these options:
●
Connect the keyboard to the tablet. See Connecting the tablet to the keyboard base on page 16.
●
Connect the keyboard to external AC power using the USB port on the keyboard and a USB adapter
(purchased separately). To locate the USB port on the keyboard, see USB port and smart card reader/pen
holder slot (select products only) on page 15.
52 Chapter 7 Managing power
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