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BQ20Z90: bq20z90 cycle count

Dexter Choi
Expert 2795 points
Part Number: BQ20Z90

Dear Sir,

When Cycle Count is discharged once, there is 2 increased cycle count.

could you advise me this issue?

EPP#01_40_1st_discharge.xlsx

  • 0
    TI__Guru** 102415 points

    Hello Dexter,

    What do each one of the BATTx represent? Are these separate packs with different gauges?

    The cycle count gets increased when a certain passed charge is met, it looks like BATT1 just hits the threshold when the other batteries aren't.

    Sincerely,

    Wyatt Keller

  • 0 in reply to Wyatt Keller
    Expert 2795 points

    Dear Wyatt,

    BAT0,1,2,3 are each BAT PACK. it mean They are testing  4 pcs BAT PACK of same gauge and GG file at the same time.

    but it is just different cycle count value of BAT1 with others Packs.

    how to fix hits the threshold issue? please advise me any comment.

    Thanks.

  • 0 in reply to Dexter Choi
    TI__Guru** 102415 points

    Hello Dexter,

    If the conditions are met the cycle counter will be incremented, this is the criteria for updating in the TRM:

    0 = one cycle count is the accumulated discharge of CC Threshold

    1 = one cycle count is the accumulated discharge of CC % x FullChargeCapacity. If CC Threshold is greater than CC % x FullChargeCapacity, CC Threshold is used for the calculation

    If the other packs didn't reach the threshold then it won't increment the cycle counts.

    Sincerely,

    Wyatt Keller