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bq34z100 - reported Full Charge Capacity Less than expected

Andy Vu
Intellectual 550 points

After doing the proper learning cycle, the capacity reported seems to be less than what I would expect.

The reported full charge is about 2780 - 2850mAh after several charge-discharge cycle.  I am expecting

somewhat close to 2950mAh.  Is it possible if you could look at my .gg file and see if there are any

incorrect setup?

The ChemID used is 3758.  5 cells in series.  Battery is LG INR18650 HG2. 

Thanks.

Golden_file.zip

  • 0
    TI__Guru 73830 points
    Andy
    Your Qmax and Ra tables have been update. The actual capacity is affected by the Termination Voltage, Load Select, temperature, etc. How much Passed Charge does the pack support in a discharge? Is the gauging accurate?

    Tom
  • 0 in reply to ThomasCosby
    Intellectual 550 points

    Thanks for the reply.  I notice that my "Full Available Capacity" is about 3000mAh which is what I would expect

    but the "Full Charge Capacity" is always about 2850mAh.  What's the difference between those two?

    "How much Passed Charge does the pack support in a discharge?"


    The pack supports up to 3000mAh or capacity or discharge.  It's just that I am not able to get that

    amount.  The spec for this pack is from 2.5V to 4.2V.

    Thanks.