Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately blinking amber light and white
light
An unauthenticated or unsupported non-Dell AC adapter is attached to
your laptop.
Alternately blinking amber light with steady
white 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.
White light on Battery in charge mode with AC adapter present.
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