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BQ24610 multi-cell battery charger

Genius 3475 points

HI 

Would like to check, if i have 6 cell battery pack, 25.2V. 

I have set the Vbatt charging voltage to be 25.2V per equation 1 on datasheet. When I input a power supply of 25.2V into the battery charger, I am only able to charge the battery to 23.8V. What could be the cause of this?

Is this cause by some losses along the charging path?

My understanding is that this part is able to switch close to 100% duty cycle.

Ivan