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Lenovo 00HW043 chip 045A20 LGC Unlock request

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DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 So eeprom was not locked. 

 By the way which color wire is SP line ?.. 

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Posted : 14/09/2024 6:22 pm
torture
(@torture)
Member Moderator

Yes some of the new Lenovo batteries have SP pin which is usially next to GND so in this case it most probably is the brown color wire.

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Posted : 14/09/2024 9:55 pm
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @djibattworkshop

By the way which color wire is SP line ?..

Posted by: @torture

most probably is the brown color wire

yes, it is brown.

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Topic starter Posted : 15/09/2024 9:31 am
FJ
 FJ
(@brs)
Noble Member Customer
image

after calibration.

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Topic starter Posted : 15/09/2024 9:32 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator
Posted by: @brs

after calibration

 What was measured capacity on Calibration page ?.. 

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Posted : 15/09/2024 12:54 pm
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @djibattworkshop

What was measured capacity on Calibration page ?.. 

image
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Topic starter Posted : 15/09/2024 3:40 pm
FJ
 FJ
(@brs)
Noble Member Customer

discharge current was 1000mA

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Topic starter Posted : 15/09/2024 3:44 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 So relearned FCC is quite close to real capacity. 

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Posted : 15/09/2024 7:10 pm
FJ
 FJ
(@brs)
Noble Member Customer

yes, calibration adjusted FCC accordingly. health is about 50%, hopefully will give backup around 2 hrs.

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Topic starter Posted : 16/09/2024 1:01 pm
FJ
 FJ
(@brs)
Noble Member Customer

noted that this chip normally adjusts FCC in one go compared to TI chips which decrease 256 in one cycle.

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Topic starter Posted : 16/09/2024 1:04 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 Another observation Charge current after reflashing is exactly the same like FCC value. 

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Posted : 17/09/2024 11:37 pm
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @djibattworkshop

Charge current after reflashing is exactly the same like FCC value. 

this is not specific to this battery. noted this in most lenovo batteries.

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Topic starter Posted : 18/09/2024 12:48 pm
FJ
 FJ
(@brs)
Noble Member Customer
image

check with original dump

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Topic starter Posted : 18/09/2024 12:50 pm
FJ
 FJ
(@brs)
Noble Member Customer
image

another battery. 

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Topic starter Posted : 18/09/2024 12:57 pm
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