Hi,
I'm new to fuel gauging and battery profiling and am trying to understand the process and the parameters used.
Is there a description of how a battery model is created? What is the discharge sequence used in the profiling process and why was that specific sequence chosen? Is there documentation on the battery parameters in the model file?
I am currently trying to generate a battery model using the nPM PowerUP app with the nPM1300 EK and the nPM Fuel Gauge Board. I haven't gotten all the way through the process yet, but I see that there are varying discharge periods of either near zero current or 20% of the max rated discharge current. And the time intervals are programmed to use about 5% of the battery capacity per hour. But the time estimate is for 40 hours so there must be changes later in the process otherwise it should only take 20 hours. Is there a way to change the discharge configuration in the app?
I was also hoping to use the setup to characterize the battery discharge performance under different loads. If the discharge sequence is not configurable in the app, is there an API or description of how to program the load current DAC on the nPM Fuel Gauge Board.
Thanks,
Ralph