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Can Impedance of the Battery be Calculated by Bq34z?

Bob_Kang
Intellectual 510 points
Other Parts Discussed in Thread: BQ34Z100-G1

Hi,

We design a power management board which uses bq34z100-g1 for battery status monitoring. (The battery pack is 2x 14v lead acid battery)

Is there any way to get/calculate/estimate the impedance of the battery pack via bq34z100-G1?  Thx!

  • 0
    TI__Guru 73830 points

    The gauge updates the Ra table to match the cell that it is monitoring, but the table does not provide a single DC resistance for the cell. It provides resistances for the cell as they would appear at the Ra grid points along the discharge curve.