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mavic 3, BQ40Z307 TI V1.01, unable to clear errors

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exwilliam
(@exwilliam)
Reputable Member Customer
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The green light is lit, cant clear the errors, cant charge the battery.

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Topic starter Posted : 02/10/2024 11:12 am
exwilliam
(@exwilliam)
Reputable Member Customer

This is the second one acting the same, no charge.

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Topic starter Posted : 02/10/2024 11:35 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

Switch On the battery by push-button. 

Short click then long click. 

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Posted : 02/10/2024 12:42 pm
exwilliam
(@exwilliam)
Reputable Member Customer
Posted by: @djibattworkshop

Switch On the battery by push-button. 

Short click then long click. 

I tried to no avail.

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Topic starter Posted : 02/10/2024 2:39 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 Does push button work ?

 Does battery level LEDs blink when push button is pressed ?

 Do you have voltage on battery connector after switch On ?.. 

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Posted : 02/10/2024 2:42 pm
exwilliam
(@exwilliam)
Reputable Member Customer

I can ear and feel the button clicking fine, it seems ok here.

No, the battery doesnt blink when I press.

Yes, the voltage is there without any button press, 15volts.

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Topic starter Posted : 02/10/2024 3:08 pm
exwilliam
(@exwilliam)
Reputable Member Customer
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Just got 2 others in, not charging.

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Topic starter Posted : 02/10/2024 3:12 pm
exwilliam
(@exwilliam)
Reputable Member Customer
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This one worked.

It did not even require the button to be pressed.

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Topic starter Posted : 02/10/2024 3:29 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator
Posted by: @exwilliam

Yes, the voltage is there without any button press, 15volts.

 It is abnormal. Output voltage should be 0 volts when it is Off. 

 Send the dump to email to check it 

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Posted : 02/10/2024 3:29 pm
exwilliam
(@exwilliam)
Reputable Member Customer

I sent you dumps of two of them, still expecting updates.

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Topic starter Posted : 04/10/2024 10:01 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 Do you know if anyone repaired these batteries before ?.. 

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Posted : 06/10/2024 12:04 am
exwilliam
(@exwilliam)
Reputable Member Customer

At least, never opened. The cases are still well sealed.

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Topic starter Posted : 07/10/2024 4:22 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 Do you observe any signs of plastic fusion or discoloration near the connector ?.. 

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Posted : 07/10/2024 5:23 pm
exwilliam
(@exwilliam)
Reputable Member Customer

I can see moisture instead.

IMG 20241008 101825 1
IMG 20241008 101840 1

I will  clean  and see if any changes occur. 

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Topic starter Posted : 08/10/2024 9:21 am
exwilliam
(@exwilliam)
Reputable Member Customer

No changes, this is pack #2 for example: discharge ok, but no charge.

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Topic starter Posted : 08/10/2024 9:33 am
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