Dell LATITUDE C510 - Manual (Page 8)

The light turns on steadily or blinks when the computer is in a power management mode. It also
blinks to indicate battery charge status.
If the computer is connected to an electrical outlet, the light operates as follows:
Solid green: the battery is charging
Flashing green: the battery is fully charged
If the computer is running on a battery, the light operates as follows:
Off: the battery is adequately charged (or the computer is turned off)
Flashing orange: the battery charge is low
Solid orange: the battery charge is critically low
NOTICE: To avoid data loss, never turn off the computer while the light is flashing.
Module Bay
You can install devices such as a floppy drive, CD drive, CD-RW drive, DVD drive, Zip drive, second hard
drive, second battery, or Dell TravelLite™ travel module in the module bay. For more information, see "
Using
the Module Bay ."
Touch Pad
Use the touch pad and touch pad buttons as you would use a mouse. See " Using the Keyboard and Touch
Pad " for more information.
Battery Bay
When a battery is installed, you can use the computer without connecting it to an electrical outlet. See
"
Using a Battery ."
Touch Pad/Track Stick Buttons
Correspond to the left and right buttons on a standard mouse.
Track Stick