Other Parts Discussed in Thread: GPCCHEM, BQSTUDIO
Hello,
1. I do have a BQ40Z60 EVM and have configured for a 4S1P pack.
The charging current is set @640 mA i.e. 0.2C for a 3200 mAh cell capacity INR18650B Panasonic.
The calibration is performed initially before working of the pack. The charging current although was 450 mA initially and it drooped to 330 mA in some time.
Similarly when resetting after 30 mins although the supply current was just 500 mA (now it got automatically increased by some means) the cell current increased to 600 mA. Why is such a behavior happening.
2. Cell-1 reached higher cutoff voltage and the TC is set but why isn't the cell balancing happening to increase the pack behaviour. The cell did charge during this period upto 74%.
Please go through the attached gg.csv file for better lookup Learncycle_BQ40Z60_4S1P_3200mAh_registers.gg.csv
How to resolve the cell balancing issue. How can I be confident that the cell balancing is happening as it is suppose to happen .