What kind of performance would the Tesla have

[Lauri]

lutach - higher C-values make batteries A LOT HEAVIER also! This is not 5 or 10% but can be up to 30% or even 50%! This is from RC. I have places where 1C LiPos would be ideal. Sadly it is hard to get those low-C batteries. And on my 1/8th buggy I want to have 30-40C battery. Don't have the figures with me at the moment but the difference is big.

If Tesla's or any other electric car's battery weighs X with slow-charge battery that gives out enough energy. Then the weight would be 1.5x with fast-charge battery that gives out a lot energy (high-C). Because we don't have the infrastructure for fast charging "sockets" I'd go with the first just like Tesla has.

[lutach]

Originally Posted by Lauri

lutach - higher C-values make batteries A LOT HEAVIER also! This is not 5 or 10% but can be up to 30% or even 50%! This is from RC. I have places where 1C LiPos would be ideal. Sadly it is hard to get those low-C batteries. And on my 1/8th buggy I want to have 30-40C battery. Don't have the figures with me at the moment but the difference is big.

If Tesla's or any other electric car's battery weighs X with slow-charge battery that gives out enough energy. Then the weight would be 1.5x with fast-charge battery that gives out a lot energy (high-C). Because we don't have the infrastructure for fast charging "sockets" I'd go with the first just like Tesla has.

Not really. It really depends on who makes it, the technology used and how fine the materials are. Right now I'm looking way beyond R/C. The current 400C cell is very new, but as the materials and technology gets better, we can see some real potential from the cells. Example and I'll use the medium power 41Ah cell that is capable of 10C continuous discharge weighs 1kg Since it went 120 miles in a single charge it should be a good example. The Tesla uses 69 cells in parallel and each cell weighs 47g so we have a module that with cells alone weighs 3243g and 99 of those modules in series for a claimed 200+ mile range which have mixed results. Now if the 41Ah cell I mentioned did 120 miles under real testing done by our military then lets use 3 in parallel for a 3Kg module and 99 in series one could easily say it would give more range then the Tesla's pack. Tesla's cells can't be charged at 1C and the ones I mentioned can and a bit more and we would save 24kg or more since the 41Ah cells don't need a steel of whatever material Tesla uses to make their pack. Much safer technology and in reality only 2 cells in parallel would be needed.

Like I said before, the infrastructure is there, you have to look for it. A lot of industrial machines works on 400V plus and you can have that in gas stations as well as you house if you have a garage. An onboard charger can also be made, but it would be a little smaller and less powerful. It would work on 110V or 220V, but would be a more efficient charger then what Tesla offers. Now look at the Tesla chargers http://www.teslamotors.com/electric/charging.php. Do you think they can put out what they claim? Look at the price, even Brusa would be smiling after looking at that. Please, look at them. For the output it needs to put out, the unit would have to be a little bigger then that and have some sort of cooling (fan cooling) for it to work out.