SageBrush wrote:Since the pack dimensions are the same and that dictates the heat loss rate, I'll surmise that the 40 kWh pack will have the same degradation problems as the earlier generations.
Number 1 - Heat loss rate is NOT simply a result of pack dimensions. The pack is not solid.
This has nothing to do with being solid or not, it has to do with surface area for passive heat dissipation. The other parameters in play are the temperature gradient, heat generation, and the case material. Since no mention was made of changes to the pack casing, the power to move the car stays about the same, and we do not control ambient temperatures, the surface area becomes the difference. Same pack, same surface area.