Once your computer starts beeping, you have approximately two minutes to save your data. If the batteries run out suddenly, you will lose any data you have not saved.
Turn off the computer before replacing the battery pack. Otherwise, you will lose data, and you may even damage the computer.
Using the Suspend/Resume Switch
The suspend/resume switch provides an efficient way to save battery power. This switch is located on the top left side of the computer.
Powering the Computer