Using External Ac Power - HP ProBook 4525s - Notebook PC Reference Manual

Using external AC power

NOTE: For information on connecting to AC power, refer to the Quick Setup poster provided in the
computer box.
External AC power is supplied through an approved AC adapter or an optional docking or expansion
device.
WARNING!
a replacement AC adapter provided by HP, or a compatible AC adapter purchased from HP.
Connect the computer to external AC power under any of the following conditions:
WARNING!
●
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 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.
30 Chapter 4 Power management
To reduce potential safety issues, use only the AC adapter provided with the computer,
Do not charge the computer battery while you are onboard aircraft.