Dell Latitiude E5410 laptop battery light blinks blue then red

bluebirdsine

Estimable
Aug 25, 2014
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Why does my Dell Latitude E5410 laptop battery light blink blue and then red 3 times? Then it keeps repeating the cycle 1st blue then red 3 times then blue and red 3 times? The battery icon says the battery is 100% charged.
 

cklaubur

Distinguished
Oct 4, 2006
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18,710
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From the service manual:

Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:

Alternately blinking amber light and blue light:
An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.

Alternately blinking amber light with steady blue 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.

Blue light on:
Battery in charge mode with AC adapter present.

Could be an adapter issue or a battery issue.

Casey
 

cklaubur

Distinguished
Oct 4, 2006
150
0
18,710
27
From the service manual:

Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:

Alternately blinking amber light and blue light:
An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.

Alternately blinking amber light with steady blue 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.

Blue light on:
Battery in charge mode with AC adapter present.

Could be an adapter issue or a battery issue.

Casey
 
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