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BQ28Z610-R1: Inquiries about Battery Learning

lim sehoon
Prodigy 80 points
Part Number: BQ28Z610-R1
Other Parts Discussed in Thread: GPCRB

1. BAT  Configuration.

    1)  PACK  :  2S-1P

    2)  F/G  :  BQ28Z610-R1


2. BAT Spec : INR21700-50E

   1)  Standard discharge Capacity : 4900mAh
   2)  Charging Voltage : 4.2V
   3)  Nominal Voltage : 3.63V
   4)  CHEM ID : 2591

3. BAT CEL Protection

   1)  OCD  :  5.1 A (Recovery 0 mA)
   2)  OCC  :  4.0 A (Recovery 100 mA)
   3)  COV  :  4.2 V (Recovery 4.05 V)
   4)  CUV  :  3.0 V (Recovery 3.15 V)

4. BAT PACK Voltage Range

   1)  Max charge voltage : 8320mV  (4.16V per cell)
   2)  Max discharge voltage : 6600mV (3300mV per cell)

5. Quetion   (Inquiries about Battery Learning)


  (1)  Do I only need to learn BAT once?   Or do I have to do it several times?

        ㅡ  The more I learn BAT, the more sophisticated it gets?

  (2)  Do I have to learn BAT in cold conditions?


  (3)  Before creating a golden image, what parameters must be changed?

        ㅡ  I want to change the Protection/Life time/Charging voltage/Discharging voltage.


        ㅡ  I know "I need to change the update status to 02".   Correct?


  (4)  After creating the golden image, can I change several parameters?   ​​(Full Charge/Discharge Voltage/Protection Value, etc.)

        ㅡ  If I change the Protection/Gauge setting, do I need to repeat 'Battery-Learning' from the Beginning?

        ㅡ  Or, can I just modify the registers in the golden image?

             (Learning/Protection : 3V-4.2V  //  Actual use: 3.3V-4.16V)  (Per Cell)

  (5)  If I create GOLDEN IMAGE, is there no need to enter the 'CHEM ID' in mass production afterwards?


  (6)  Do I have to upload 'Golden-image' files on TI website?

        Or can I use the 'Golden-image', right away?

        When I get a reply from TI, can I overwrite the file and use it?

  (7)  If Cell-Balancing is not performed at '0x06' when the [Update-State] is 2-CELL,

        should we learn additional charge/discharge cycles to move to '0x0E'?

        ㅡ  is this absolutely necessary?

  (8)  I put the Chem ID of my cell and started the cycle. Should I use the "Gauging Parameter Calculator"?

        ㅡ  Should I use BQ Studio's GPC Packer?

  (9)  Upload our 'Golden-image'. Please check.

2744.2610_1_01-bq28z610R1.zip

  • 0
    TI__Mastermind 19195 points

    Hi Lim,

    Refer to this app note: 

    Best regards,

  • 0 in reply to Nick Brylski
    Prodigy 80 points

    Dear,  Nick Brylski

    I've checked the App-Note.
    However, the App-Note do not detail what I want.

    For the above inquiries, please check and reply.
    Thank you.

    -----------------------------------


      (1)  Do I only need to learn BAT once?   Or do I have to do it several times?

            ㅡ  The more I learn BAT, the more sophisticated it gets?

      (2)  Do I have to learn BAT in cold conditions?


      (3)  Before creating a golden image, what parameters must be changed?

            ㅡ  I want to change the Protection/Life time/Charging voltage/Discharging voltage.


            ㅡ  I know "I need to change the update status to 02".   Correct?


      (4)  After creating the golden image, can I change several parameters?   ​​(Full Charge/Discharge Voltage/Protection Value, etc.)

            ㅡ  If I change the Protection/Gauge setting, do I need to repeat 'Battery-Learning' from the Beginning?

            ㅡ  Or, can I just modify the registers in the golden image?

                 (Learning/Protection : 3V-4.2V  //  Actual use: 3.3V-4.16V)  (Per Cell)

      (5)  If I create GOLDEN IMAGE, is there no need to enter the 'CHEM ID' in mass production afterwards?


      (6)  Do I have to upload 'Golden-image' files on TI website?

            Or can I use the 'Golden-image', right away?

            When I get a reply from TI, can I overwrite the file and use it?

      (7)  If Cell-Balancing is not performed at '0x06' when the [Update-State] is 2-CELL,

            should we learn additional charge/discharge cycles to move to '0x0E'?

            ㅡ  is this absolutely necessary?

      (8)  I put the Chem ID of my cell and started the cycle. Should I use the "Gauging Parameter Calculator"?

            ㅡ  Should I use BQ Studio's GPC Packer?

      (9)  Upload our 'Golden-image'. Please check.

    6562.2610_1_01-bq28z610R1.zip

  • 0 in reply to lim sehoon
    TI__Genius 11535 points

      (1)  Do I only need to learn BAT once?   Or do I have to do it several times?

            ㅡ  The more I learn BAT, the more sophisticated it gets?

    You only need to run a learning cycle once per cell type and configuration.

      (2)  Do I have to learn BAT in cold conditions?

    You can use the GPCRB tool to calculate this
      (3)  Before creating a golden image, what parameters must be changed?

            ㅡ  I want to change the Protection/Life time/Charging voltage/Discharging voltage.


            ㅡ  I know "I need to change the update status to 02".   Correct?

    Yes you change this before you export your final golden image file. It's fine to leave the status at 06.


      (4)  After creating the golden image, can I change several parameters?   ​​(Full Charge/Discharge Voltage/Protection Value, etc.)

            ㅡ  If I change the Protection/Gauge setting, do I need to repeat 'Battery-Learning' from the Beginning?

            ㅡ  Or, can I just modify the registers in the golden image?

                 (Learning/Protection : 3V-4.2V  //  Actual use: 3.3V-4.16V)  (Per Cell)

    You should do the learning cycle on full voltage range and then you can set your paraments and export the Golden Image

      (5)  If I create GOLDEN IMAGE, is there no need to enter the 'CHEM ID' in mass production afterwards?

    That depends on what you export for your final Golden Image. Use the srec or the flash stream file 
      (6)  Do I have to upload 'Golden-image' files on TI website?

            Or can I use the 'Golden-image', right away?

            When I get a reply from TI, can I overwrite the file and use it?

    You only send in the files to get your CHEMID.

      (7)  If Cell-Balancing is not performed at '0x06' when the [Update-State] is 2-CELL,

            should we learn additional charge/discharge cycles to move to '0x0E'?

            ㅡ  is this absolutely necessary?

    It is up to you if you would like to do cell balancing. If you do, you will need to run another cycle.

      (8)  I put the Chem ID of my cell and started the cycle. Should I use the "Gauging Parameter Calculator"?

            ㅡ  Should I use BQ Studio's GPC Packer?

    You used the Gauging Parameter Calculator to get the Chem ID.