HP MT40 User's Guide download pdf (Page 30)

Using battery power

WARNING! To reduce potential safety issues, use only the battery provided with the computer, a

replacement battery provided by HP, or a compatible battery purchased from HP.

The computer runs on battery power whenever it is not plugged into external AC power. Computer

battery life varies, depending on power management settings, running programs, display brightness,

external devices connected to the computer, and other factors. Keeping the battery in the computer

whenever the computer is plugged into AC power charges the battery and also protects your work in

case of a power outage. If the computer contains a charged battery and is running on external AC

power, the computer automatically switches to battery power if the AC adapter is disconnected from

the computer or an AC power loss occurs.

NOTE: When you disconnect AC power, the display brightness is automatically decreased to save

battery life. For information on increasing or decreasing display brightness, see

Identifying the

hotkeys on page 13.

Displaying the remaining battery charge

▲

Move the pointer over the power meter icon in the notification area, at the far right of the taskbar.

Inserting or removing the battery

To insert the battery:

1. Turn the computer upside down on a flat surface, with the battery bay toward you.

2. Insert the battery (1) into the battery bay until it is seated.

The battery release latch (2) automatically locks the battery into place.

To remove the battery:

CAUTION: Removing a battery that is the sole power source for the computer can cause loss of

information. To prevent loss of information, save your work and shut down the computer through

Windows before removing the battery.

1. Turn the computer upside down on a flat surface, with the battery bay toward you.

2. Slide the battery release latch (1) to release the battery.

20 Chapter 6 Power

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HP MT40 User's Guide Page 30