Conserving Battery Power - HP Compaq Presario,Presario R4000 Hardware And Software Manual

Power

Conserving Battery Power

To extend the time that a battery pack can run the notebook
from a single charge, use the following battery conservation
procedures and settings.
Conserving Power as You Work
To conserve battery power as you work:
■
Run the notebook on external power instead of a battery pack
whenever possible.
■
Prevent devices you are not using from drawing power from
the notebook. For example:
❏
❏
❏
❏
■
Use optional, externally powered speakers instead of the
internal speakers whenever possible. When you use the
internal speakers, minimize system volume. Volume can
be adjusted with the volume buttons.
■
Minimize screen brightness. To decrease screen brightness,
press the
the
■
If you leave your work, initiate standby or hibernation, or
shut down the notebook.
2–28
Turn off wireless and local area network (LAN)
connections (select models only) and close modem
applications.
Disconnect from the notebook any external devices
that are not plugged into an external power source.
Stop, disable, or remove an inserted
◆
PC Card.
◆
Digital memory card (select models only).
◆
ExpressCard (select models only).
Turn off a device connected to the S-Video-out jack.
hotkey. To increase screen brightness, press
fn+f7
hotkey.
fn+f8
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