BQ40Z80: Relative state of charge (2)

Hello Fabrizio,

The log has Full charge capacity =72 and RSOC =72

I don't know the history here. Do you know how it got to 72?

I don't know; this is the part of the problem that we need to solve.

What do you suggest to do to investigate? Do we make a specific test to download other data?

Hello Fabrizio,

Do you get those values immediately after the golden image is programmed? In that case the golden image could be the problem.

No, we have this problem after some cycle... but do you suggest to repeat the learning cycle?

Should we start with a new battery pack or clear data on (how?) it?

These are the parameters that we set for the BMS and for the learning cycle:

2  Cell series 18650 Samsung 30Q i
Design Capacity mAh: 2950mAh
Design Voltage: 7.2V (2x3.6) 
Design Capacity cWh: 2.95*7.2*100= 2124cWh
Charge term taper current: 150mA
Dsg Current Thershold: 100mA
Chg Current Thershold: 50mA
Quit current: 10mA
Term Voltage: 5000mV

ChemID 2085

What is the GGfile?

bqStudio has a "Data memory" tab. You can export and import data flash settings to and from files with GG.CSV extension. We refer to these as GG files.