Quote:
Originally Posted by Lauri
My laptop only lasts about 3h on batteries. I think any electric passanger car should last longer. So considering that passanger car cells could be about the same as laptop cells :)
Ok. I think it is stupid to have 10 000 of some small cells but its up to what is cheaper and more efficient to use at some time. Like said, you have to plan ahaed many years when building a car. It would be smarter to use something like those 20Ah LiFePO4 cells just to have fewer of them.
And overheating the cells when using them? Well... it comes down to IR of the cells and the power you take from them. It would be wise to use such cells that don't need cooling. It is a simple high-school fysics equasion to figure it out how much heat is generated by driving a car.
I think that Tesla is overkill considering its acceleration and power needs. Don't know about Tesla but I'd like to have a mode that limits the power to a regular passanger car. No need for better acceleration than 9sec 0-100kmh (0-60mph).
I don't like comparing RC with passanger electric car. Those are very different things. One is high performance 10-minute running and another has totally different need for the batt.
Don't belive there will be high voltage charging stations available in 3-4 years. You could have one at your house but then you usually don't need to charge the car fast...
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Check out how much power your laptop consumes and then compare that to how much power Tesla consumes. If Tesla is to be a true sports car, it would need top notch batteries. For $120K, they could've went with a better drive train, battery system and charger.
Now in one of those small cars, then you could use some sort of energy cell, but in a LiFePO4 form. I know places in China that uses a small 10KW drive train along with LiFePO4 ranging from 100Ah-200Ah. They only use 72V or 144V. Using those large format cells only 20 or 40 cells would be needed.
Comparing our R/Cs is the best thing one can use. Wonder how Tesla failed on selecting their components? If your idea of using energy cells compared to power cells is correct, then try it out and let us know. I've done my research since 1998 and I know a laptop energy cell can't come close to performing as well as any power cell.
Currently that are chargers available. Everything is available to make this go forward, but currently the morons doing them are not using them. I don't know if it's the cost or if they don't know where to look. People make things expensive, but if you know where to look, it's very cheap all it takes is some research. I've been speaking with a lot of folks in the EV components market and guess what they say about our R/C components, "We are way ahead of the full size EV and the auto industry in general."