Westinghouse NB-14w2 - Manual (Page 53)

■ Chapter 3 Battery Power & Power Management
3-12
Low Battery Warning
You can define when and how the system warns you of
its battery-low condition.
Go to the Alarms tab in the Power Options Properties box.
If you wish to hear audible beeps, click on the Alarm
Action button and put a check on Sound Alarm.
Note:
Consult Windows user guide for more information on how to
use Windows power management functions.
Note:
Actual dialogue box shown above may appear slightly different.