BQ40Z80: Problem of RSOC for the INR21700-P50B

micou ludovic

Part Number: BQ40Z80

Tool/software:

Hello,

I have a battery 6S2P INR21700-P50B. the RSOC drops too quickly when discharging and it takes a lot of time to grow during charging.

I have receive the data of GCPRB before log this discharge.

Gauge after temp.gg.csv New Prog.log

Best Regards,

Ludovic Micou

4 months ago

0 Alan Frias 4 months ago

TI__Mastermind 27405 points

Hello Micou,

micou ludovic said:
RSOC drops too quickly when discharging

-What temperature are you performing that test in? Typically if you are performing these test in cold temperature you should expect a decrease in capacity due to cell chemistry.

micou ludovic said:
discharging and it takes a lot of time to grow during charging.

-Standard charge time is 1.5hr and is dependent on your charging thresholds

Thank you,
Alan

0 micou ludovic 4 months ago in reply to Alan Frias

Expert 1225 points

Hello,

The discharge is in temperate room of 23°C.

For the charge, it doesn't incremate before I have 3.1V per cell. but between 2.7V per cell to 3.1V per cell, it is a big difference of capacity.

Best regards,

+1 Alan Frias 4 months ago in reply to micou ludovic

TI__Mastermind 27405 points

Hello Micou,

The issue of charging speed is dependent on your power supply.

Thank you,
Alan

Power management

Power management forum

BQ40Z80: Problem of RSOC for the INR21700-P50B