BQ40Z50-R2: Maximum cell capacity

David Park

Part Number: BQ40Z50-R2
Other Parts Discussed in Thread: BQ40Z50, BQ40Z80, BQ34Z100

Hi,

When BQ40Z50-R2 is adopted in 4s32p, what is expected concern?

Cell capacity is 100000mAh and charging/discharging current is 2~3A.

Thanks.

0 Andy Liu (BMS) over 5 years ago

Hi David,

The maximum Design Capacity bq40z50 supports is 65535mAh.

Andy

0 David Park over 5 years ago in reply to Andy Liu (BMS)

Hi Andy,

Thanks for your support.

Could you let me know your recommendation for 100000mAh?

Thanks.

0 Andy Liu (BMS) over 5 years ago in reply to David Park

Check the two below.

a) BQ40z80. It supports 29-Ah batteries natively, and larger capacities with scaling. See section 6.7 Current Scaling of bq40z80 TRM.

b) BQ34z100. See the app note below.

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