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Lenovo 45N1121 chip BQ8030A FW.Sony charging issue

FJ
 FJ
(@brs)
Noble Member Customer

received this battery with big unbalance of above 500mv. balanced the cells.

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Topic starter Posted : 24/09/2024 10:57 am
FJ
 FJ
(@brs)
Noble Member Customer

cells seem to be fine

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Topic starter Posted : 24/09/2024 11:01 am
FJ
 FJ
(@brs)
Noble Member Customer

discharging is fine

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Topic starter Posted : 24/09/2024 11:02 am
FJ
 FJ
(@brs)
Noble Member Customer

but charging in pulses with very low current

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Topic starter Posted : 24/09/2024 11:04 am
FJ
 FJ
(@brs)
Noble Member Customer
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Topic starter Posted : 24/09/2024 11:05 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 Start discharge and check all mosfets with a fingertips for any signs of overheating. 

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Posted : 24/09/2024 2:00 pm
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @djibattworkshop

Start discharge and check all mosfets with a fingertips for any signs of overheating.

no overheating

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Topic starter Posted : 24/09/2024 4:01 pm
FJ
 FJ
(@brs)
Noble Member Customer

left the battery in charge state for little long and soc now 100%

image
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Topic starter Posted : 24/09/2024 4:03 pm
FJ
 FJ
(@brs)
Noble Member Customer

now calibrating. will update after completion.

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Topic starter Posted : 24/09/2024 4:04 pm
FJ
 FJ
(@brs)
Noble Member Customer
image

FCC remained same. pls suggest.

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Topic starter Posted : 24/09/2024 4:28 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator
Posted by: @brs

left the battery in charge state for little long and soc now 100%

 It looks like a chip bug. 

Posted by: @brs

now calibrating.

 Calibration could not be done correctly due to charge issue. 

Posted by: @brs

FCC remained same.

 It was huge unbalance during calibration. 

 

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Posted : 24/09/2024 5:53 pm
FJ
 FJ
(@brs)
Noble Member Customer

can FCC be updated remotely? 

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Topic starter Posted : 25/09/2024 10:28 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 me dont have license for this chip 

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Posted : 25/09/2024 3:36 pm
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