Other Parts Discussed in Thread: BQ76952
Tool/software:
I've noted in some log files related to the jumping SoC issue, what appears to be the charger pumping additional Q's into what the 34z believes to be a fully charged battery...i.e. EoC conditions have been detected (FC = 1).
In one particular case a battery with a TrueFCC reading 100.2Ah, but at the beginning of a discharge, the TrueRC reads 116.4 Ah
I saw that, after the FC flag was set, an additional passed charge of ~18Ah was pumped into the battery by the charger. This resulted in the TrueRC reported by the 34z to be 16.2 Ah greater that its reported TrueFCC of 100.2
What's interesting is that the battery voltage never rose above the over-voltage protection threshold set in the accompanying protector (bq76952 COV).
What I noted is that, while the SoC and RM values get clamped at 100% and 100.2 respectively, the TrueRC continues to rise as long as charge current continues.
I'm assuming that the 34z is handling this scenario as it was designed to do so, but that this is an incorrect charger profile for this battery. Let me know if I'm wrong-headed about this.
Thanks
