Disposing Of A Used Battery; Using External Ac Power; Connecting The Ac Adapter - HP 6720t - Mobile Thin Client Reference Manual

Disposing of a used battery

WARNING!
external contacts; do not dispose of in fire or water.
Refer to the Regulatory, Safety and Environmental Notices for battery disposal information. These
notices are located in the printed Getting Started guide.

Using external AC power

External AC power is supplied through one of the following devices:
WARNING!
a replacement AC adapter provided by HP, or a compatible AC adapter purchased from HP.
●
Approved AC adapter
●
Optional docking device
Connect the computer to external AC power under any of the following conditions:
WARNING!
●
When you are charging or calibrating a battery
●
When you are modifying system software
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. To increase display
brightness, press the

Connecting the AC adapter

WARNING!
Plug the power cord into an AC outlet that is easily accessible at all times.
Disconnect power from the computer by unplugging the power cord from the AC outlet (not by
unplugging the power cord from the computer).
If provided with a 3-pin attachment plug on the power cord, plug the cord into a grounded (earthed) 3-
pin outlet. Do not disable the power cord grounding pin, for example, by attaching a 2-pin adapter. The
grounding pin is an important safety feature.
To connect the computer to external AC power, follow these steps:
1. Plug the AC adapter into the power connector (1) on the computer.
2. Plug the power cord into the AC adapter (2).
To reduce the risk of fire or burns, do not disassemble, crush, or puncture; do not short
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.
fn+f10 hotkey or reconnect the AC adapter.
To reduce the risk of electric shock or damage to the equipment:
Using external AC power 35