HP Tc4400 Power - Page 35

Step 1: Charging the battery pack, Start > Control Panel > Performance

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Battery packs Step 1: Charging the battery pack A battery pack can charge whether the computer is off or in use, but it will charge faster when the computer is off. Å WARNING: Do not charge the computer battery pack while onboard aircraft. To charge the battery pack: 1. Insert the battery pack into the computer. 2. Connect the computer to an AC adapter, an optional power adapter, or optional docking device, and then plug the adapter or device into external power. The battery light on the computer is turned on. 3. Leave the computer plugged into external power until the battery pack is fully charged. The battery light on the computer is turned off. Step 2: Discharging the battery pack Before you begin a full discharge, disable hibernation. To disable hibernation: 1. Select Start > Control Panel > Performance and Maintenance > Power Options > Hibernate tab. 2. Clear the Enable hibernation check box. 3. Click Apply. The computer must remain on while the battery pack is being discharged. The battery pack can discharge whether or not you are using the computer but will discharge faster while the computer is in use. 7-12 Power

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7–12
Power
Battery packs
Step 1: Charging the battery pack
A battery pack can charge whether the computer is off or in use,
but it will charge faster when the computer is off.
Å
WARNING:
Do not charge the computer battery pack while onboard
aircraft.
To charge the battery pack:
1. Insert the battery pack into the computer.
2. Connect the computer to an AC adapter, an optional power
adapter, or optional docking device, and then plug the adapter
or device into external power.
The battery light on the computer is turned on.
3. Leave the computer plugged into external power until the
battery pack is fully charged.
The battery light on the computer is turned off.
Step 2: Discharging the battery pack
Before you begin a full discharge, disable hibernation.
To disable hibernation:
1. Select
Start > Control Panel > Performance and
Maintenance > Power Options > Hibernate
tab.
2. Clear the
Enable hibernation
check box
.
3. Click
Apply
.
The computer must remain on while the battery pack is being
discharged. The battery pack can discharge whether or not you
are using the computer but will discharge faster while the
computer is in use.