Hello,
I have BQ34Z100 with high capacity 4-cell LiFePO4 battery. I came through the learning cycle and Update Status is reached 06. I am charging the battery with automatic charger till 14.6 volt and this voltage is normally lowering till 13.6V during 1 day of relaxation. The problem is that BQ34z100 State of charge is decreasing to 94% in a week with no load (I checked it once in two days), and is staying constantly on this level after it. Now the battery voltage is 13.4V (BH is set) and SoC is not decreasing any more during 2 weeks.
I was thinking the problem is because of cleared BH flag during relaxation. I lowered Cell BH Clear Volt Threshold value till 3250 (it was 3400 before), but the problem still exist.
What the problem could be? Could it be something wrong in Data Flash parameters?
GG is attached(Please visit the site to view this file)
Thanks in advance,
Ilja