Hi, TI team,
We use BQ40Z50-R1 to design a 3S2P battery pack using Panasonic NCR18650B cell.
When we test the battery at about 4.5A under -20 deg.C, we saw a significant drop in FCC and RSOC.
Is there any parameter that we should look at to minimize the drop? In Chemistry list, there are 2 IDs for Panasonic NCR18650B cell.
We use 2012 now. Will it be helpful if we change the ID to 2017?
Also, we saw that RSOC is not compliance with LED display when we performed the low temperature discharging test. (RSOC=0%, LED=3).
Any suggestion?
Thank you for your help in advance.
Joyce
