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Original question:

CCS / BQ20Z90 : Learning cycle

CCS / BQ20Z90 : Contact SOC

Kim Rae Hyeon
Prodigy 30 points
Part Number: BQ20Z90


Tool/software: Code Composer Studio

I have a question regarding SOC.

If the cell voltage and SOC capacity are different during use,
What is the problem and what is the solution?

  • 0
    TI__Mastermind 42535 points

    Hi Kim Rae,

    The cell RSOC will vary with the voltage. RSOC not only depends on voltage but also on the load, a load rate of C or 2C will definitely have a lower terminal voltage and capacity than a dsg rate of 0.2C. Please study the tutorials on impedance track available in the training documents and have answers to almost all your questions. 

    There are many such videos on ti.com and also on youtube.