You've got it slightly backwards. Let me try to explain. If the fan is on and the battery needs cooling the A/C will come on. To prevent too cool an interior, turn off the fan. The cooled coolant will continue to be circulated through the battery, keeping it within it's limits. The fan isn't involved with cooling the battery, just the interior. So now we have the battery being cooled by the pumped cooled coolant. To address the interior with the fan making it too cool you can select the vent mode where the air pressure of the moving car (fan is off)will circulate the outside air through the car. You can adjust the amount and direction by manually adjusting the air vents as to volume and direction.