Other Parts Discussed in Thread: BQSTUDIO
Tool/software:
Hello
We are developing a motor control product that uses the BQ40Z50 for battery management, we have 2 battery pack discharge scenarios.
Scenario A: battery will discharge slowly over time while in storage.
Scenario B: battery pack will discharge fast while running a motor (under 10 minutes)
if we discharge the battery slowly the SOC appears to be accurate.
if we discharge the battery fast the SOC seems to get to 0% SOC too quickly, it is obvious that there is still plenty of capacity left at 0% as we can continue to run the motor for a long period of time after it has reached 0%
Can you please advise on configuration settings we should look at to make the SOC more accurate in the fast discharge scenario. the troublesome area appears to be between 40% and 0% SOC.
We have confirmed this is not a case of forcing the SOC to 0% due to configuration settings, but more like a rapid decline in SOC from 40% to 0% in the high discharge scenario.
Regards
Ian
