Other Parts Discussed in Thread: BQ76952, , GPCCHEM, BQSTUDIO, BQ34Z100-G1
We are working on a custom PCB with BQ76952 and BQ34Z100-R2 fuel gauge. We're using a 12 cell battery with 50.4V total pack voltage. The battery pack is custom made so we required to determine a CHEM ID.
I have already done the following steps:
1. Used the GPCCHEM tool and generated a CHEM ID (Here's my report )
2. Performed a learning cycle and update status even changed to 0x06.
After performing the learning cycle, I charge the battery to full and the SOC shows accurate values upon charging. However, as soon as it reaches full charge, the SOC abruptly drops down to 0% and remains like that until I discharge it. Then in the next attempt, the SOC at charging is valid again. Please help, as I could not find any solution to this.
For further clarification, here's the zip file of my charge-relax-discharge readings. roomtemp_rel_dis_rel