It is not a problem for the CELL pin to be connected to the battery while Vdd is left open. As long as the absolute max ratings of the CELL to GND voltage are not exceeded (-0.3V to 12V, from datasheet), the IC will be fine in this case.
It is not a problem for the CELL pin to be connected to the battery while Vdd is left open. As long as the absolute max ratings of the CELL to GND voltage are not exceeded (-0.3V to 12V, from datasheet), the IC will be fine in this case.