Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately
blinking amber
light and green
light
An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.
Alternately
blinking amber
light with steady
green light
Temporary battery failure with AC adapter present.
Constantly
blinking amber
light
Fatal battery failure with AC adapter present.
Light off Battery in full charge mode with AC adapter present.
green light on Battery in charge mode with AC adapter present.
Diagnostic LED
This section details the diagnostic features of the battery LED in a laptop.
Instead of beep codes errors are indicated via the bicolor Battery Charge LED. A specific blink pattern is followed by flashing a pattern of
flashes in green, followed by white. The pattern then repeats.
NOTE:
The diagnostic pattern will consist of a two digit number being represented by a first group of LED blinks (1
through 9) in green, followed by a 1.5 second pause with the LED off, and then a second group of LED blinks (1 through
9) in white. This is then followed by a 3 second pause, with the LED off, before repeating over again. Each LED blink
takes 0.5 seconds.
The system will not shutdown when displaying the Diagnostic Error Codes. Diagnostic Error Codes will always supersede any other use of
the LED. For instance, on laptops, battery codes for Low Battery or Battery Failure situations will not be displayed when Diagnostic Error
Codes are being displayed:
Table 26. LED pattern
Blinking pattern Problem Description Suggested Resolution
Green White
2 1 processor Processor failure
2 2 system board, BIOS ROM System board, covers BIOS
corruption or ROM error
2 3 memory No memory/no RAM
detected
2 4 memory Memory failure/RAM failure
2 5 memory Invalid memory installed
2 6 system board; chipset System board/ chipset error
2 7 display Display failure
3 1 RTC power failure Coin-cell battery failure
3 2 PCI/Video PCI/Video card/chip failure
3 3 BIOS recovery 1 Recovery image not found
3 4 BIOS recovery 2 Recovery image found but
invalid
3 5 Power Rail Failure EC ran into power
sequencing failure
154 Diagnostics
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