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BQ25710: VSYS lower than VBAT when near V_maxcharge

Part Number: BQ25710

Hi,

I am experience that with my EVM, when nearing the max charge voltage for a 4 cell battery (16.8V), the voltage read back for the system voltage seems to stay at 16.3V while the V_BAT rises. The voltage seen on the electronic load connected at V_SYS reads the a value closer to the V_BAT value. Could I possibly get an explanation for this? Thank you

Best Regards,

Zhen Kit