This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ34Z100-G1: -

Part Number: BQ34Z100-G1

Hello, 

In the process of selecting the proper chemical ID of our battery cell, we need are wondering about the document SLVA725A section 3.2:

"3.2  LiFePO4/LFP/Lithium-Iron Phosphate
The required test consists of the following steps:
1. Test is performed at room temperature. If the cell was at a different temperature before, let the cell
relax for two hours at room temperature prior to the test.
2. Charge using CC or CV charging to full using taper current. (For example C/100.) Use nominal CC
charge rate and CV voltage. If another charging method is specified by the cell maker, use that
method.
3. Let the battery relax for five hours to reach full equilibrium open circuit voltage (OCV).
4. Discharge the battery at C/10 rate until the minimal voltage (as specified by the cell manufacturer) is
reached.
5. Let the battery relax for five hours to reach full equilibrium OCV."

  • When does the logging begin?
  • Does the logging take in account the charging step (step numer 2)? 
  • Does the cell need to be fullty discharge befor step two?

best regards,

Paul ROCHE

  • Hi Paul,

    You do not need to fully discharge to empty before step two.

    Yes, you should log the charging process, like Figure 1 in slva725, to ensure the complete process (charge to full - relax - discharge to empty- relax) is recorded.

    Sincerely,

    Jayden