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BQ35100: BQ35100 EOS Mode output result. Is this StateOfHealth(): 0x2E/0x2F ??

March Jasper
Expert 2340 points
Part Number: BQ35100

Hi  

Thank you very much a lot of help. 

We using  EOS mode with Li-SOCl2.

Of course  this device has  2 type Mode  SOH (State of Health ) and EOS (End of Service )  mode.  

However, I sometimes get confused when using this device.

Briefly, where should I check the result of EOS mode?

Ordinary Gauge report to  SOC Resister for Remain result with Battery. 

In which register is the result reported in EOS mode?

Should we simply check the StateOfHealth (): 0x2E / 0x2F register when using this BQ35100?

Or in EOS mode, do we have to make our own judgment based on the reported value of MeasuredZ (): 0x22 / 0x23?

It is a very simple question, but please let me know.

Thanks and Regard

March Jasper 　（ Japan  Disty  Sugimoto )

  • 0
    TI__Mastermind 25955 points
    Hi March,

    Due to loading, the expert for the bq35100 will update this thread tomorrow.

    Sincerely,
    Bryan Kahler
  • 0 in reply to Bryan Kahler
    TI__Guru* 76230 points
    Hi March

    There is an EOS flag that needs to be monitored. Pls see section 5.3.2 of the TRM document.

    thanks
    Onyx
  • 0 in reply to Onyx Ahiakwo
    Expert 2340 points

    Hi　Onyx

    Thank you very much quick replay. 

    Yes , we know EOS 5.3.2 

    > There is an EOS flag that needs to be monitored. Pls see section 5.3.2 of the TRM document.

    [ Question ]  

    1)    Should we just check the EOS Flag with Battery End Condition ?

    2)  Can not we see the remaining capacity as " %"  in EOS mode?

         * Data Sheet   11.13 StateOfHealth(): 0x2E/0x2F  said .  

           The value is valid for both the SOH and EOS gauging modes. 

          It is stated that this  "StateOfHealth(): 0x2E/0x2F  "    can be used in both  EOS and SOH.

    There are a lot of explanations in TRM regarding the functions, but we do not know how to

    finally determine the end of the battery.　Please tell me more.

    Regard

    March Jasper  ( Japan Disty Sugimoto )

  • 0 in reply to March Jasper
    TI__Guru* 76230 points

    The SOH works in EOS mode. The gauge determines SOH based on the resistance. But for SOH to work in EOS mode,  the chem id has to be the correct one for the cell. EOS on the other hand doesn't need the actual chem id because the gauge just looks at  the slope of the changing resistance.

    thanks

    Onyx