To Check The Battery Status; To Respond To A Low-Battery Warning - HP OmniBook 4150 Reference Manual

Managing Battery Power
Monitoring Battery Power

To check the battery status

From the Windows Taskbar
Move the pointer onto the power icon at the right end of the taskbar. If you are using
Windows NT 4.0, you'll need to install Advanced Power Management to display the
power icon (see "To install APM for Windows NT 4.0" on page 51). The approximate
battery charge is displayed as a percentage or in hours.
Double-click the power icon on the taskbar to open the Battery Meter window.
From Windows Control Panel
Click My Computer, Control Panel, Power. This provides access to all options
associated with reporting of power information by Windows.
On the Battery
1. Remove the battery from the OmniBook (see "To replace the battery" on page 54).
2. Press the pad on the back of the battery.
The number of lights that turn on indicates the charge—each light represents 20% of a
full charge.

To respond to a low-battery warning

When battery power is critically low, you are alerted by one or more of the following:
The computer emits a warning beep. This reminds you to save your work.
If the OmniBook has been off, you will not be able to turn it on.
The OmniBook automatically hibernates to preserve your current session. However,
unsaved data could be affected if the battery runs down completely while writing data to
the drive. You won't be able to restart until you restore power by one of the following
actions:
Plug in the ac adapter.
–or–
Replace the main battery with one that is charged.
–or–
Install a charged second battery in the plug-in module bay.
52 Reference Guide