[Lauri]

Tesla has limited maximum speed. What is the time it gets up to that speed? I bet it is under 10 sec. So the maximum power need from the battery is a true burst current of under 10 sec. Then driving at any speed doesn't consume more than 1C - otherwise you'd be able tu run less than a hour.

I get what you are saying but when talking about passanger cars you don't have anything sporty about them. RC cars are sporty in a sense that they use all the power available in under 10 minutes (6+C current). Only thing sporty about passanger car is the not-so-often happening acceleration.

Tesla - a passanger car that has good acceleration compared to other pertrol engine cars. It is not anything special considering what electric car could do.

I'm not trying to argue with you. I'm just pointing out some things.
- passanger electric car can't consume high burst current for more than 10 seconds otherwise it would be going too fast for regular traffic. And even this high burst current isn't anything crazy considering the amount of batteries needed to be able to get decent milage.
- you want decent milage from a passenger electric car. Lets say 200miles/300km. This makes the average current only maximum of 0.3C and any battery can handle this.

Ok... you could have 1:1 electric dragster or a racing-car but Tesla isn't non of them. Tesla is a sporty looking passanger car that has good acceleration compared to regular internal combustion engine cars.

My point being is that Tesla consumes ABOUT THE SAME AVERAGE POWER AS A LAPTOP! Average laptop runs 2-3hours on a battery. Tesla runs even longer I think (driving optimal speed). And YES you can compare those two this ways. This all comes down to average consumption aka C-value of the batt which is about the same.

I just checked out the carts from Tesla. Running optimal long distance comes to about 10 hours driving (their calculated charts). So when you'd want to do distance records with Tesla you'd be running a lot lower power than any laptop! Regular driving would be about the same.

Think it this way - which ever battery you put on the car you can limit the power consumption of the car so that the battery would handle it. You MUST do it because of the crazy torque available but not needed. You can limit the power abilities of the car by telling it how long distance you have to go. The car must monitor the state and temp of the batteries. If they are getting too hot the car can just limit the power that is drawn from them etc.

To come back to the original question. You want to have a battery that can accelerate you to top speed every 2-3 minutes? You are not accelerating from 0 to top speed, then braking to 0 speed and then accelerating again like you are doind with a RC car. Usually you accelerate from 0 to cruising speed and then drive to next red light or a hundred miles. And you'd like to get good milage from the battery and you don't want to pay too much for them. There are many things more important than the pure power characteristics of a passanger car battery.