About EV's!
I just made a small calculation, that if I want to replace the engine in my car with a electric one with the same rating, how many batteries I would need at minimum.
The facts:
My car is a Audi 100 with a 110kW engine (about 140hp).
Some common 12V led-acid batteries have the following rating 65Ah and 100A continous current.
Each battery would be able to generate 12V*100A=1200W which would give the following calculation 110kW/1.2W=91.67 batteries. So with 92 batteries I would be able to drive for 65Ah/100A=39 minutes.
Just the weight of all these batteries would probably make the care dead slow.
OK, the time calculation is a bit extreme as it assumes pushing the car to the limit (220km/h).
Anyway it's showing that with standard batteries it would be hard to pull a standard car. In this case you probably have to think about a hybrid that generates power with a gas turbin. This is the way they use to do it on many passenger ferries since the 1930's as it gives much higher flexibility in the design plus some other benefits like generating less noise.
The idea of electric conversion is cool and it should be possible since electric cars were quite common, and often outperformed gasoline cars, in the end of the 19th century.
