Battery Information
Nominal voltage = 3.8V.
Battery Capacity is 4000 mAH
- Battery is connected to fuel gauge and fuel gauge is connected to PC
- In the BQ Studio Clicked on the Read All button in the Data Memory window. & Exported text file with a .gg.csv extension, now i have modified below parameters in that file.
- [Gas Gauging][State][QMax]: 4000
- [Gas Gauging][IT Cfg][Term Voltage]: 3.0V
- [Gas Gauging][Advanced Charge Algorithm][Charge Term Taper Current]: 200mA
- [Gas Gauging][Advanced Charge Algorithm][Low/Standard/High/Rec Temp Charging][Voltage]: 4.2
- Imported modified .gg.csv file to the bq studio.
- Clicked on Write_All button and flashed parameters [Verified parameter after Read All Button and checked all modified parameter in the BQ studio Data Memory.]
- Setting Chem ID
- Selected ChemID: 4.4 V (ID 3142) [As our battery dont have any listed IDs, we have selected 3142 as per bq27z561EVM-011 user guide]
- Clicked "Program Selected Chemistry"
- Now i go to the Watch window and added below register & started logs.
- Voltage
- Current
- Temperature
- Relative State Of Charge
- Full Charge Capacity
- Remaining Capacity
- After i am continuing the charging till my battery [state of charge shown in UI of BQ Studio] reach to 100%
- I have removed the charging and make relaxing state for battery up to 2 hours.
- I am putting battery on discharging using constant discharging current till its reach to 0% Battery [state of charge shown in UI of BQ Studio].
- After reaching 0% now putted battery on relax state for next 5 hours.
- Logs saved as .CSV file and rename file as roomtemp_rel_dis_rel.csv.
- Now made config.txt file as below notes.
- ProcessingType = 2
- NumCellSeries = 1
- ElapsedTimeColumn = 0
- VoltageColumn = 1
- CurrentColumn = 2
- TemperatureColumn = 3
- Combine both .csv file and .txt file in zip folder and attached on TI mentiond links.
- Now TI will give me the Chem ID as per our application.
Query[1] Is this all steps are correct for generating chem ID? If its not proper step kindly suggest.
Query[2] How to generate golden file image for our application?
Query[3] How to test golden image on EVK?
Query[4] First received logs is such like that
- Voltage - 3.4V
- Current - 0
- Temperature - 23.5
- Relative State Of Charge - 3%
- Full Charge Capacity - 5075
- Remaining Capacity - 128
After few minutes of charging state
- Voltage - 3.5V
- Current - 180mA
- Temperature - 24.5
- Relative State Of Charge - 4%
- Full Charge Capacity - 5075
- Remaining Capacity - 208mA
Why full charge capacity is showing 5075mA while i have already set the Qmax=4000mA?