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BQ76940: BQ76940

Part Number: BQ76940

Dear All:

I am using the BQ76940 to design the 14S BMS ,can you answer the  following questions?

1: There are three diodes between BATT+ and  BAT,VC10 and VC10x,VC5 and VC5x ,What does the diode do? 

2: If  connect 13 batteries,must connect like this?

VC14-VC13 :short

VC9-VC8:short

3ks!