BQ40Z60: Learning cicle.

Alex Svir

Part Number: BQ40Z60

Hello!
I can not successfully finish the learning cycle. I use 4s 5000mAh lithium battery pack and EVB. All alarm bits are cleared. But the update status does not change to 05 after the rest period.
Could you check my settings file?

I use a BQ40Z60 without a charger function. The connection of the branded charger and the load is carried out through terminals VSYS and PGND. Is this correct?

In addition, after the end of the charge and the rest period, the RSOC drops to 92%. Is this normal?

Best regards,

Alex Svir

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/bq40z60_5F00_5Ah_5F00_20.04.18.gg.csv.7z

over 7 years ago

0 David Hien over 7 years ago

TI__Genius 10830 points

Hi Alex,
Your post has been assigned to one of our BMS experts.

Regards,
David

0 Batt over 7 years ago

TI__Mastermind 42535 points

Hi Alex,

Have you correctly identified the chemistry of the battery first? That is very important before you start doing a learning cycle.

0 Alex Svir over 7 years ago in reply to Batt

Prodigy 110 points

Thanks for the quick answer.
I made a mistake. We use Li-ion batteries. As I understand, they are supported by default.

0 Batt over 7 years ago in reply to Alex Svir

TI__Mastermind 42535 points

They are. But you need to get the chem ID matched correctly before attempting a learning cycle.

Power management

Power management forum

BQ40Z60: Learning cicle.