Other Parts Discussed in Thread: BQ34Z100
Hi,
I got bq34z100 monitoring 7s2P stack of INR18650-20R. Some test runs on the Bpacks are monitored well and SOC calculations occurs propely. But quite often I can repeat situation in which when discharging with 20A or more suddenly at SOC=60% there is hard SOC decrese ramp and SOC falls down to 0 in 10-15 sec instead of couple of minutes. Usually test runs using 10-15Amps are quite OK.
Where should I look for a problem?
And more:
If I find correct coefficients (Ra etc.) is there any way to upload then into bq already in an application? I mean is there a chance to upload golden file (128kB) into a BQ in small chunks that I be able to store in memory of my HOST MCU, or could I upload only changed Ra parameters via I2C.