BQ27542-G1: discharge issue at -20 degree

Part Number: BQ27542-G1 Hi Team, we use GPC to get the report,but the pack directly discharge RSOC at -20 degrees,and the RSOC is about 8x% and directly to 0%, and the customer system can not turn on at -20 degree,so what happen to cause this problem? there problem with the battery specificaion? please kindly refer the attached. ICP535172AWRU pre spec_STD(4.4V)160928.pdf AKH08-20200422.gg.csv AKH08-(-20C)放置LOG.xlsx AKH08_GPC_Rb.zip AKH08_GPC_Chem ID.zip AKH08_GPC_Chem ID-report.zip AKH08_GPC_Rb-report.zip

Hello Tommy, The drop to 0% is because Terminate Voltage 3200mV was reached. We need to understand why the SOC was being overestimated. Can you log the data with FCC, Rem Cap and True/unfiltered SOC being reported.