Dell Latitude CPx J - Manual (Page 59)

First Low-Battery Warning
The first low-battery warning—a blinking amber battery indicator—occurs when you have about 15 minutes of battery
life left under current conditions and the computer is not connected to an electrical outlet. Figure 4 shows the battery
indicator status lights.
Figure 4. Status Lights
1 Power indicator
2 Drive access indicator
3 Battery indicator
NOTICE: When you see a low-battery warning, save your work immediately. Then replace the battery or
connect your computer to an electrical outlet.
After the first low-battery warning, if no input/output (I/O) activity occurs within 75 seconds, the computer activates
suspend-to-disk mode. If the computer has no suspend-to-disk partition, the computer enters suspend mode. The
computer can preserve data for several hours in suspend mode.
If you have set the computer to enter suspend-to-disk mode after a certain amount of time with no I/O activity, the
computer enters suspend-to-disk mode before the final low-battery warning. Once suspend-to-disk mode is activated,
no further power is consumed.
NOTICE: Never turn off the computer while the drive access indicator is on. Doing so could cause data loss.
Instead, close all of your application programs before you turn off the computer.
Second Low-Battery Warning
The second low-battery warning—a steady amber battery indicator—occurs when you have about 5 minutes of battery
life left under current conditions and the computer is not connected to an electrical outlet.
After the second low-battery warning, if no further I/O activity occurs within 15 seconds, the computer activates
suspend-to-disk mode. If there is no suspend-to-disk partition, the computer enters suspend mode. The computer can
preserve data for several hours in suspend mode.
If the computer is already in suspend mode when a final low-battery warning occurs, the computer activates suspend-
to-disk mode immediately. If suspend-to-disk mode has been disabled, the computer reenters suspend mode.
NOTICE: To avoid losing data (and possibly corrupting data areas on your hard-disk drive), save your work
immediately after a second low-battery warning. Then connect your computer to an electrical outlet, or place
the computer in suspend mode. If the battery runs completely out of power, the computer shuts off without
properly closing any open files.