BQ40Z50-R2: full charge capacity not update

user6501051

Part Number: BQ40Z50-R2
Other Parts Discussed in Thread: BQ40Z50

Tool/software:

Dear Ti expert,

I am useing BQ40Z50 design one BMS, achieving learning cycle, the chemical ID is 7670

the first step discharging battery to empty, and relax for at least 5 hours, successful, update status 0x04

the second step charge battery to full, and then relax, update status change to 0x05

the third step discharge battery to empty and relax, update status change to 0x06

0 Adrian over 1 year ago

Hello,

I checked the log file and I see that full charge capacity has updated throughout completing the learning cycle.

Regards,

Nick Richards

0 user6501051 over 1 year ago in reply to Adrian

i battery capacity about 10.5Ah, i use BAK NMC 3.35Ah cell, the battery configure is 4S3P.

0 user6501051 over 1 year ago in reply to Adrian

Qmax Cell1 is 10885mAh

Qmax cell2 is 11019mAh

Qmax cell3 is 10903mAh

Qmax cell4 is 10941mAh

Qmax pack 10885mAh

i do not why full charge capacity not 10885mAh

0 Adrian over 1 year ago in reply to user6501051

Hello,

I will need some time to review this.

Regards,

Nick Richards

Power management forum