BQ20Z655-R1: FCC is not updated correctly when using the cell chemistry ID

Ronaldo Poltronieri

Part Number: BQ20Z655-R1
Other Parts Discussed in Thread: BQSTUDIO

I am using the Bq20z655-R1 in a battery pack 4S3P (14.8V - 10200 mAh) using the Sanyo Panasonic cells model NCR18650BF.

The EVSW was updated using the last chemistry updater.

The NCR18650BF chemical ID is 2142.

After programming and calibrating the pack, even leaving it resting for 5 hours, the FCC showed does not correspond to the actual value. It is showing FCC of 7979mAh. I have tested the pack (charging and discharging at C5) and, the actual capacity is 10170 mAh.

Please let me know how to correct this discrepancy.

Thanks,

Ronaldo

over 8 years ago

0 answer over 8 years ago

TI__Intellectual 1735 points

Hi，
Please make sure your chem id is correct. The chem id for NCR18650BF in bqstudio is 2039.

0 Ronaldo Poltronieri over 8 years ago in reply to answer

Prodigy 40 points

Hi,

It seems the BqStudio is not compatible with the Bq20Z655, I am using the EVSW version 0.9.80 and, the NCR18640BF listed (Bqchem screen) chemical ID is 2142.

0 answer over 8 years ago in reply to Ronaldo Poltronieri

TI__Intellectual 1735 points

Hi,
You can try to change the chem id to 2039 to see if the problem will be solved.

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BQ20Z655-R1: FCC is not updated correctly when using the cell chemistry ID