Part Number:BQ20Z70
Hello,
I'm now trying to generate the golden file for 3S3P battery pack, 7800 mAh, 11.1V typ.
I have two concerns about the work.
- When I charge and discharge the battery pack, I can see more than 150mV of the different voltage level gap between maximum and minimum.
- This should be less than 100mV, what parameters I need to check in order to get this target value?
- I set the Min Cell Deviation to 1314, = dQ *R / (V * duty cycle) = 3600*540/(3700*0.4).
- The values of Qmax Cell 0/1/2/Pack kept changing to the overcapacity of the battery pack.
- Initially, I set the values of each parameter to 7800 (mAh), and the values were changed to 8445/8456/8450/8445.
- What can cause this change?
Thanks,
Sherard Yu