HP Pavilion dm4-3170se Beats Edition Entertainment Notebook PC - Manual (Page 54)

Using HP Power Manager (select models only)
Power Manager allows you to select a power plan to optimize your computer's power consumption
and battery charge. The following power plans are available:
● Power saver
● HP Recommended
● High performance
To start Power Manager when Windows is running:
▲ Select Start > Control Panel > Hardware and Sound > HP Power Manager.
Using battery power
When a charged battery is in the computer and the computer is not plugged into external power, the
computer runs on battery power. When the computer is plugged into external AC power, the
computer runs on AC power.
If the computer contains a charged battery and is running on external AC power, the computer
switches to battery power if the AC adapter is disconnected from the computer.
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 Using the action keys
on page 28 .
You can keep a battery in the computer or in storage, depending on how you work. 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. However, a battery in the computer slowly
discharges when the computer is off and unplugged from external 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.
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.
44 Chapter 6 Power management