BQ28Z610: HTCFR26650 low temperature full charge estimation issue

Hello!

I'm facing unexpected behavior when using HTCFR26650 2 cell pack.

As soon as temperature is lower than some threshold the full charge and remaining charge estimation goes wild and drops to values well lower than 1000mAh.

The full design capacity is 6400mAh (for 2 cell pack) but the gauge does never report anything near this value. The value varies between 5700 and 6100. But I guess this is a separate issue that I would also like to get a little help about.)

Some relevant (I hope) bits of information:

- I selected 0x444 CHEM_ID and everything works pretty okay on temperature ranges > ~10C

- We're using internal temperature for IT estimation. TS1 is not connected to a thermostat.

- Settings->Configuration->Temperature Enable is set to 0x01 (TSInt). 

- Protections: UTC = 0C, UTD=-20C.

I'm also attaching gg.csv with all DF parameters.

params.gg.csv.zip

Thanks in advance.

Best regards.