HP Pavilion dm1-4211nr Entertainment Notebook PC - Manual (Page 42)

Replacing the battery
Computer battery life varies, depending on power management settings, programs running on the
computer, display brightness, external devices connected to the computer, and other factors.
To find details about the battery, click the Battery icon in the notification area at the far right of the
taskbar, and then click Laptop Battery.
NOTE: To ensure that you always have battery power when you need it, HP recommends
purchasing a new battery when the storage capacity indicator turns green-yellow.
Using external AC power
NOTE: For information on connecting to AC power, see the Setup Instructions poster provided in
the computer box.
External AC power is supplied through an approved AC adapter.
WARNING! To reduce potential safety issues, use only the AC adapter provided with the computer,
a replacement AC adapter provided by HP, or a compatible AC adapter purchased from HP.
Connect the computer to external AC power under any of the following conditions:
WARNING! Do not charge the battery while you are onboard aircraft.
● When you are charging or calibrating a battery
● When you are installing or modifying system software
● When writing information to a CD or DVD
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 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.
32 Chapter 6 Power management