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BQ40Z60: Ra Table Not Updating During Discharge

Part Number: BQ40Z60
Other Parts Discussed in Thread: GPCCHEM

Hi,

I'm currently in the process of completing the learning cycle. So far the update status is 05 so I was able to update Qmax. After discharging the batteries from full and waiting 5 hours for relaxation, the update status does not go to 06. The [VOK] was cleared and the [REST] flag was set. I recharged the batteries and attempted a second discharge but noticed that the Ra table is not updating during discharge so it would seem that no resistance measurements are taking place at all. I've tried a C/5 rate and a C/7 rate so far. I'm using 4 Kokam LiPo batteries (3300 mAh/cell, Chem ID: 2049) in a 2S2P configuration, a requirement for my application. I attached the log from my first attempt at the learning cycle which includes the full discharge for resistance updates. Can someone advise on what may be going wrong?

Thanks,

Perry

 3302.learning_cycle.log