HP Probook 6450 B User Guide

3.Remove the battery from the computer (2).
Charging a battery
WARNING!Do not charge the computer battery while you are onboard aircraft.
The battery charges whenever the computer is plugged into external power through an AC adapter, an
optional power adapter, or an optional docking device.
The battery charges whether the computer is off or in use, but it charges faster when the computer is
off.
Charging may take longer if a battery is new, has been unused for 2 weeks or more, or is much warmer
or cooler...

●Blinking amber: A battery that is the only available power source has reached a low battery level.
When the battery reaches a critical battery level, the battery light begins blinking rapidly.
●Off: If the computer is plugged into an external power source, the light turns off when all batteries
in the computer are fully charged. If the computer is not plugged into an external power source,
the light stays off until the battery reaches a low battery level.
Maximizing battery discharge time
Battery...

Resolving a low battery level
CAUTION:To reduce the risk of losing information when the computer reaches a critical battery level
and has initiated Hibernation, do not restore power until the power lights turn off.
Resolving a low battery level when external power is available
▲Connect one of the following devices:
●AC adapter
●Optional docking device
●Optional power adapter
Resolving a low battery level when a charged battery is available
1.Turn off the computer or initiate Hibernation.
2.Remove the...

To fully charge the battery:
1.Insert the battery into the computer.
2.Connect the computer to an AC adapter, optional power adapter, optional expansion product, or
optional docking device, and then plug the adapter or device into external power.
The battery light on the computer turns on.
3.Leave the computer plugged into external power until the battery is fully charged.
The battery light on the computer turns off.
Step 2: Disable Hibernation and Sleep
1.Click the battery meter icon in the notification...

To discharge a battery:
1.Unplug the computer from its external power source, but do not turn off the computer.
2.Run the computer on battery power until the battery is discharged. The battery light begins to blink
when the battery has discharged to a low battery level. When the battery is discharged, the battery
light turns off and the computer shuts down.
Using battery power 75 

Step 4: Fully recharge the battery
To recharge the battery:
1.Plug the computer into external power and maintain external power until the battery is fully
recharged. When the battery is recharged, the battery light on the computer turns off.
You can use the computer while the battery is recharging, but the battery will charge faster if the
computer is off.
2.If the computer is off, turn it on when the battery is fully charged and the battery light has turned
off.
Step 5: Reenable Hibernation and Sleep...

Storing a battery
CAUTION:To prevent damage to a battery, do not expose it to high temperatures for extended periods
of time.
If a computer will be unused and unplugged from external power for more than 2 weeks, remove the
battery and store it separately.
To prolong the charge of a stored battery, place it in a cool, dry place.
NOTE:A stored battery should be checked every 6 months. If the capacity is less than 50 percent,
recharge the battery before returning it to storage.
Calibrate a battery before...

Testing an AC adapter
Test the AC adapter if the computer exhibits any of the following symptoms:
●The computer will not turn on when connected to the AC adapter.
●The display does not turn on when the computer is connected to the AC adapter and external
power.
●The power lights are off when the computer is connected to the AC adapter.
To test the AC adapter:
1.Remove the battery from the computer.
2.Connect the AC adapter to the computer and to an AC outlet.
3.Turn on the computer.
●If the power lights...

If the computer is unresponsive and you are unable to use the preceding shutdown procedures, try the
following emergency procedures in the sequence provided:
●Press and hold the power button for at least 5 seconds.
●Disconnect the computer from external power and remove the battery.
Shutting down the computer 79 

6Drives
Identifying installed drives
Your computer includes a hard drive (with a rotating disc) or a solid-state drive (SSD) with solid-state
memory. Because it has no moving parts, an SSD does not generate as much heat as a hard drive.
To view the drives installed on the computer, select Start > Computer.
NOTE:Windows includes the User Account Control feature to improve the security of your computer.
You may be prompted for your permission or password for tasks such as installing applications, running...