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[Solved] LENOVO L14M2P21 - BQ40Z695A TI V2.02 , I need to change FCC to 2800 mAh

Fogonazo
(@ventas)
Noble Member Customer
image

I could reset with NLBA , reprogramm with EV2300 , but FCC remains low.

 

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Topic starter Posted : 01/07/2024 9:37 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 which kind of cells did you installed, LiPo or LiHv ?..  

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Posted : 02/07/2024 12:49 pm
Fogonazo
(@ventas)
Noble Member Customer

In this case LiPO 3,7 V ( I first installed 2800 mAh, now I have 3200mAh, in case you have not done it yet, change capacity to 3200)

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Topic starter Posted : 02/07/2024 1:24 pm
Fogonazo
(@ventas)
Noble Member Customer
20240702 104447

 this battery originally uses 3,7 lipo cells

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Topic starter Posted : 02/07/2024 1:48 pm
Fogonazo
(@ventas)
Noble Member Customer

@djibattworkshop Thanks!

image

 

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Topic starter Posted : 02/07/2024 2:02 pm
Fogonazo
(@ventas)
Noble Member Customer

now I also could change to 3200 mAH with no problem and also changed chemistry id

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Topic starter Posted : 02/07/2024 2:13 pm
Fogonazo
(@ventas)
Noble Member Customer

@djibattworkshop charging current is still a bit low, 800mA

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Topic starter Posted : 02/07/2024 4:40 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 This is how JEITA Charge modulation works. 

 Battery is cold, 14.75 *C, so charge current is reduced. 

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Posted : 02/07/2024 4:45 pm
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Fogonazo
(@ventas)
Noble Member Customer

@djibattworkshop this battery has 3,7 lipo cells, why is charge voltage set only to 8200mv instead of 8400 mv?

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Topic starter Posted : 16/07/2024 8:21 pm
Fogonazo
(@ventas)
Noble Member Customer
image

 cells get charged only to 4100mv, they never get to 4200mv as they are supposed to

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Topic starter Posted : 16/07/2024 8:31 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 This is how Pack Maker programmed the chip. Also check what is laptop charge settings. Some vendors allow custom charge levels to prolong cells service. 

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Posted : 16/07/2024 9:27 pm
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