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BQ27411-G1 available capacity

Allen Stuart
Prodigy 240 points
Other Parts Discussed in Thread: BQ27531-G1, BQ24257

Hi

I am currently having an issue with the BQ27411 device internal to a pack - roughly speaking I have a battery pack that contains a charger and coulomb counter.  The cell is 2600mAh single cell, however I am unable to get a true representation of the SOC or the available capacity.  If the cell has been charged until the charger IC (BQ24257) indicates the cell is full the SOC states 100% but only 400mA capacity.  I am wondering if the issue is that it is always connected to this charger, and would the BQ27531-G1 be a better alternative?

Thanks

Allen