WARNING! Do not charge the computer battery while you are onboard aircraft.

When you are charging or calibrating a battery

When you are installing or modifying system software

When you are writing information to a CD, DVD, or BD

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 battery 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 f3 action key or reconnect the AC adapter.

Connecting the AC adapter

WARNING! To reduce the risk of electric shock or damage to the equipment:

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:

1.Plug the AC adapter into the power connector (1) on the computer.

2.Plug the power cord into the AC adapter (2).

3.Plug the other end of the power cord into an AC outlet (3).

Using external AC power 53

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HP dm4-1160us, dm4-1162us manual Connecting the AC adapter