Hi,
Why does the bq40z60 require a separate pre-charge FET with current limiting resistor if it has already a built-in "smart" charger which would be able to adjust its charging current according to the battery condition?
In other words, the charger could provide a reduced charging current until the battery has recovered and then increases the current to the nominal charging current. this would require a Firmware update of the bq40z60 with a pre-charge current setting register but would save external components.
Fred