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BQ40Z50-R2: Auto calibration

Statham Su
Genius 4990 points
Part Number: BQ40Z50-R2

Hello Sir:

For a battery pack that has been used for about two years, does this auto calibration function can be correct the deviation of the resistance value automatically?

Can you explain auto calibration definition and usage scenarios?

Please help to provide your recommendations.

Thanks a lot.

  • 0
    TI__Guru 57697 points

    Hello Statham,

    Auto calibration calibrates the ADC/CC offset. This impacts voltage/current readings only. The impedance of the battery is monitored by the gauge algorithm which depends on voltage/current readings.