Forgive my ignorance, I really don't know a lot about this topic. A Tesla Model S has a power of 315 HP (234 kW) and the largest battery they come with is 100 kW*hr. So shouldn't it only be able to run for (100 kW*hr)/(234 kW) = 0.43 Hr? I'm assuming the answer to this is the car doesn't use the full 315 HP when driving around town... The problem is when I look at dyno charts for it, the power still seems to be too high for the battery even at low rpms. Any enlightenment about this would be appreciated.