BQ27421-G1: bq27421 / Charge and discharge cycle test at 0 degC

Hi,

Now I evaluate bq27421 after performing learning cycle at only 25 degC, then I can't good result at 0 degC. Should I perform learning cycle at 0 degC also? Here is the procedure when I got attached log file.

1. Perform learning cycle and complete correctly
2. Perform charge and discharge test at 25 degC, then I can see good result (1C charge -> 1C discharge -> 1C charge -> 0.5C discharge...)
3. After #2, perform the same test at 0 degC, then I can not see good result as attached.

bq27421 25degC.log.xlsx

bq27421 0degC.xlsx

Best Regards,

Satoshi / Japan Disty