BQ27520-G4: Discharge SOC 30% Jump TO 0%

user4709693

Part Number: BQ27520-G4
Other Parts Discussed in Thread: GPCCHEM

Tool/software:

learning cycle was successful，but discharge SOC It jumps from 30% to 0% every time.How to set up to solve this problem.Attached is the saved log.bq27520-G4_EV2300.xls

over 1 year ago

0 Diego over 1 year ago

TI__Mastermind 25885 points

Hi,

Thanks for the log file!

What ChemID are you using? how was it decided?

can you share your .gg file?

Regards,

Evan

0 user4709693 over 1 year ago in reply to Diego

Prodigy 90 points

chemID:5235 ，the actual cell used LISHEN 8P LR1865Sx,capacity of a single cell 3000mAh.0550.gg.csv

0 user4709693 over 1 year ago

Prodigy 90 points

SOC It jumps from 30% to 0%,but TrueSOC is continuous every time.

0 Diego over 1 year ago in reply to user4709693

TI__Mastermind 25885 points

Hi,

You need to use the GPCCHEM tool to get a ChemID match with DOD% error of 3% or less.

GPCCHEM Application software & framework | TI.com

Regards,

Diego

0 user4709693 over 1 year ago in reply to Diego

Prodigy 90 points

The following errors were reported by the calculation engine:
Error: negative Ra R=-3866.7 check data and ID selection 。

Do you know how to deal with the problem? log7.zip log7-report.zip