BQ28Z610: Learning cycle necessity

Samil TARKAY

Part Number: BQ28Z610
Other Parts Discussed in Thread: BQSTUDIO, , EV2400

Hi;

I am using bq28z610 in my design that's configuration is 1S2P, 3.6V, total 6800 mAh capacity. I am using EV2400 and bqStudio 1.3.86 to configure and monitor the BMS. I can configure and monitor all parameters, no issue. But RSOC value is always %100 and doesn't change in any condition. I charged and discharged the battery but no change in RSOC. Is it obligatory to complete a learning cycle as described in SLUA777.

And one more question is, when I complete learning cycle in one battery, how can I configure other batteries? I think, I don't have to complete learning cycle for each batteries in mass production.

Regards.

over 5 years ago

0 Samil TARKAY over 5 years ago

Prodigy 70 points

Andy Liu (BMS)

0 Andy Liu (BMS) over 5 years ago in reply to Samil TARKAY

TI__Guru 52115 points

Hi Smail,

You must do a learning cycle. Otherwise, the RSOC reported will NOT be accurate. Once the learning cycle is done, you can go ahead and generate a golden image. This golden image can be used for mass production.

Follow the app note below to perform the learning cycle.

http://www.ti.com/lit/an/slua777/slua777.pdf

Andy

0 Samil TARKAY over 5 years ago in reply to Andy Liu (BMS)

Prodigy 70 points

Hi Liu;

Thank you.

Regards.

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BQ28Z610: Learning cycle necessity