BQ34Z100-G1: Which parameters are cell based in dataflash of bq34z100-g1

The Design Capacity is always 1S based, so yes it should be set to the specified capacity of the cell x the number of parallel cells. Most users will find the typical FCC of a their new pack and set it to that value to allow SOH to equal to 100%. The bq34z100-G1 handles gauging at a 1S level, so all data flash parameters are setup for 1S. The gauge will monitor the stack voltage at the BAT pin and divide it by the Number of Series Cells parameter to determine the cell voltage used for gauging.

Hello TEC,

I'm using 12V 150Ah battery.Each cell voltage is 2V. That means 6 cells

Voltage divider : 12000mV

Q Max cell : 150Ah/6 cells = 25000mAh

Design Capacity : 150000mAh / 29000mAh = 5.17. That means rounded to 5x.

Design Energy : (12V * 150000mAh ) / 6 cells = 300000mWh

300000mWh >32767mWh.

So My design Energy scale is 10

Finally Design Energy : 300000/10 = 30000mWh

Is my whole Calculations are correct....?

I assume that you are working with a PbA battery. Cell manufacturers specify the pack capacity at a 1S level, so the capacity for this pack will be 150000mAh. Qmax is specified at the 1S level as well. You can use 5x scaling, but I would use 6x just to be safe.

Qmax = 150000mAh / 6x = 25000mAh
Design Capacity = 150000mAh /6x = 25000mAh
Design Energy = Design Capacity x 1S cell voltage = 25000mAh x 2V = 50000mWh

I would use the Design Energy Scale of 10x to convert the Design Energy to cWh.

Design Energy = 50000mWh = 5000cWh