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BQ34Z100-G1: FCC update at charge termination

Part Number: BQ34Z100-G1

Hello everyone.

I have 12cells Li-Ion battery with 3Ah capacity.

By mistake I configured Cell Taper Voltage to 1000mV with Charging voltage=4200mV. Taper current is 150mA.

I started charge the new battery (3.42V per cell) first time by small current of 100mA.

After few minutes I noticed the SOC=100% and Full Charge Capacity=2500mAh.

I can understand that SOC=100% is because of End of Charge conditions were met but why FCC updates to remaining capacity???

I think FCC can be updated at the End of Charge only if battery was discharged below Cell Terminate Voltage before. But the battery was newly assembled.