Considering the cost of a dji smart battery, seems like the batteries would have additional means to help keep them cool.
The air vents on the sides of the battery bay are not signed very well for intake cooling. However, if you knew prior to flight that the battery would be subject to reaching high temps, something I would recommend that should help to cool it down is to rotate the A/C to the point in which the right or left side became the forward direction. You shouldn't have to do that process very long as allowing air to now travel through the side vent over & under the battery and out the other side.
The air vents on the sides of the battery bay are not signed very well for intake cooling. However, if you knew prior to flight that the battery would be subject to reaching high temps, something I would recommend that should help to cool it down is to rotate the A/C to the point in which the right or left side became the forward direction. You shouldn't have to do that process very long as allowing air to now travel through the side vent over & under the battery and out the other side.