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BQ2060 data lost

Vikas Saraswat
Prodigy 110 points
Other Parts Discussed in Thread: BQ2060

hi all,

I am working on the battery managment project for Lion battery. I need to get the different battery status hence used the bq2060. It provided me the status when the battery was charging and when it is discharging.

Also i gave the state of fully charged and fully discharged status. But at one point when the battery was discharging, i plug it out the battery and inserted it again.

At this point the bq2060 starts giving the wrong data. When monitoring the battery status register when the command for it is given, the resultant byte was not correct. It showed me battery discharging even though it was placed to charge.

Also when the battery was fully charged, when i repeated the step of pluging out the battery and inserting it again, the bq2060 again start giving the wrong data!!!

Is it necessary that the bq2060  should be given the power always??? I have give the learning cycle already before testing it.

Need help to sort out this problem.

Regards

  • 0
    TI__Expert 6470 points

    Yes, in normal battery pack lifetime, the fuel gauge should always be powered from the cells. Your other questions will require a log from the EVSW so we can try to see what is happening.

  • 0 in reply to Doug Williams4811
    Prodigy 110 points

     

    Ok, so what care should i have to take care if i want to remove the battery from the pack to replace it???

    Also i am not using EVSM software to get the data from the bq2060. I am using 8051and communicate with the bq2060 using the I2C communication. After getting the data, i  transfer the data, gathered in the microcontroller to the computer via UART and analyse it manually.