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BQ40Z50-R2: Packet checksum mismatch and Timeout unexpected response communicating with device

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

Hello,

1. i am facing timeout or unexpected response communicating with device while charging the battery pack.

            i am not facing this issue(timeout or unexpected response communicating with device.) while the battery pack is at rest.(idle) and while discharging the battery.

             i have done many charge cycle more than 10 ampere, but  i am facing this communication  issue recently

           bqstudio is not detecting the guage automatically

2. calibration error

           

 I have done calibration many times , every time when i remove load ,the discharge current i not coming back to 0mA it is always showing offset current of -200mA approx ,i am facing this problem recently,

3..I am doing learn cycle ,as i tried to empty the  battery and wait for REST flag to set ,even after 10 hours REST flag is not setting ,and discharge current is not reaching to zero (load removed)

4..what can be term voltage value if my battery pack voltage range is from 10 volts(0%soc) to 14.6 volts(100%soc).

Best Regards,

Eeswari.

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