Posted by: @kix

and think that TP6 point might have the SP?

 Check with multimeter connection between TP6 and the topmost pin of ribbon connector marked pink on the picture. 

  If resistance between these two points is close to 0 Ohm it means TP6 is System Present point. 

Posted by: @djibattworkshop

Posted by: @kix

and think that TP6 point might have the SP?

 Check with multimeter connection between TP6 and the topmost pin of ribbon connector marked pink on the picture. 

  If resistance between these two points is close to 0 Ohm it means TP6 is System Present point. 

thank you, i got between 1.19 ~ 1.24 on it, so im assuming that is it?

I will try some tests to see if we manage!

Posted by: @kix

i got between 1.19 ~ 1.24 on it

 Which multimeter mode did you select, Resistance or Diod check ? 

Ω OHM - resistance 

whilst assuming that TP6 and topmost pin on the connector are SP i tested TP7,8 and 9 to assert my assumption for the zener diodes of C and D

Problem is that i found that all 3 points (to be around 625 - 630 (so there are 3 points not 2)

I also got my board view to get the pinouts on the logicboard instead and see maybe i can trace back and connect the dots in all of this. bare in mind that the screenshot below is of the logicboard, but it could be useful if anybody can read in between the lines here and offer some other help.

So, TP6 is System Present point which is marked on board view as SYS_DETECT_L 

 Now check resistance between second pin of ribbon connector marked orange arrow on the picture and TP7, TP8 points 

TP7 marks 0.7

TP8 nothing

TP9 nothing

 Try this connection 

TP_J1P -> +

TP_J1N -> -

TP7 -> SDA

TP8 -> SCL

TP6 -> SysPresent 

tried this and didnt work, any next steps ?

Posted by: @djibattworkshop

 Try this connection 

TP_J1P -> +

TP_J1N -> -

TP7 -> SDA

TP8 -> SCL

TP6 -> SysPresent 

 

Update: I also tried this, excluding the TP6 pin, instead connecting it directly with the BMU flex cable to a Macbook.

The difference here is that now i actually get the OUTPUT light on the NLBA coming on without me needing to click POWER ON on NLBA software

Posted by: @kix

any next steps ?

 Try to reverse SDA and SCL wires. 

Posted by: @kix

The difference here is that now i actually get the OUTPUT light on the NLBA coming on

 System Present pin should be connected to GND to activate battery output. 

 If front LED is on when SP is connected to ground it means battery is not locked. 

 Does it works Ok in laptop ? 

Posted by: @djibattworkshop

Posted by: @kix

any next steps ?

 Try to reverse SDA and SCL wires. 

Posted by: @kix

The difference here is that now i actually get the OUTPUT light on the NLBA coming on

 System Present pin should be connected to GND to activate battery output. 

 If front LED is on when SP is connected to ground it means battery is not locked. 

 Does it works Ok in laptop ? 

 Try to reverse SDA and SCL wires. - I tried this already - same. I also tried switching off NLBA and software on/off, just in case.

 If front LED is on when SP is connected to ground it means battery is not locked. - thank you for the tip, will keep this in mind

Does it works Ok in laptop - Last time i tried, yes it works ok. But since i pulled it out and started playing around with it to try to hook it up to NLBA i haven't tried it again. This will be my next step to confirm it is still actually working fine. Will let you know

 In the laptop you could use Coconut Battery application to check battery parameters. 

Posted by: @djibattworkshop

 In the laptop you could use Coconut Battery application to check battery parameters. 

The initial issue with this battery is that after 6-7 full charge and discharge cycles, it still shuts the device down (whilst on battery) at around 15%, without any warning

I wanted to check if it requires a proper calibration or if it is faulty. I haven't tried coconut on it yet, though i do use it and will hook it up as well so that i can get some other info on it.