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BQ40Z50-R1: BQ40Z50-R1 RSOC incorrect issue

Star Xu
Genius 9645 points
Part Number: BQ40Z50-R1

Hi 

The customer test with BQ40Z50-R1, the problem is after discharging from 68% to 8% and manually stopping it, let it sit for a while and the SOC will rise back to 9%.

The CHEM ID is selected and full learning.

Attached the gg file and log data.

CN070-AC300-4-7-4.log

CN070-AC放电到SOC4%后关输出再按点烟口按键SOC跳变为7%.csvCN070-BMS模拟AC300放电-SOC4%跳7%.logCN070.gg.csv

Please help check it.

Thanks

Star

  • 0
    TI__Genius 13495 points

    Hi Star,

    After discharging while the battery is relaxing, the jump in the SOC is a natural occurrence for the battery returning to its relaxed state. However, there are settings you can implement to stop this from happening:

    Enabling LOCK0 can assist this.

    Disabling these parameters can assist this as well.

    Regards,

    Anthony Baldino