The yammer heads are bemoaning the lack of water cooling on the leaf
The best any non active cooling can do is bring the battery to the outside temperature.
If you leave your 100 degree garage and it is 115 outside then cooling will actually increase the temperature.
Cooling works on an ICE because the gas explosions generate a temperature far above the outside temperature .
I agree Nissan screwed up in only considering cold operation but without active cooling nothing can achieve better than the outside temperature.
The best any non active cooling can do is bring the battery to the outside temperature.
If you leave your 100 degree garage and it is 115 outside then cooling will actually increase the temperature.
Cooling works on an ICE because the gas explosions generate a temperature far above the outside temperature .
I agree Nissan screwed up in only considering cold operation but without active cooling nothing can achieve better than the outside temperature.