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BQ28Z610: BQ28Z610 RSOC jump when the load is changed

Star Xu
Genius 9645 points
Part Number: BQ28Z610

Hi 

I have a query need your help.

First charge and discharge with 7A constant current, the curve is normal. After full charge again, use 15W to discharge, the curve is abnormal.

The CHEM ID is selected and full learned.

Attached the gg file and the log data.

15W放(1) (1).logbq28z6100v1.gg.csv

Please help check it.

Thanks

Star

  • 0
    TI__Mastermind 27321 points

    Hello Star,

    There's no RSOC jump here. The problem is that the gauge estimated Full charge capacity based on the previous discharged load (7A). In other words the gauge underestimated FCC. This is mainly because load select is set to 7 which uses  Max Avg P. 

    Try changing load select to 06 and change user rate cW to -1500cW. See below

    Gas Gauging IT Cfg User Rate-cW -1500 cW


    Regards,
    Jose Couso