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Is this where we are headed? electric 11 sec car!

I disagree--battery technology is growing in leaps and bounds--by the time this is ready for a sled--engine--maybe 30 lbs, probabley less --batteries around 50lbs9Lithium)--still less than your 800 drivetrain.

That cars motor only weighed in at 35lbs and pushed all that weight to a 11 sec quarter mile--now deduct about 2500 lbs and imagine all that it would take to make you fly.

Go beyond what you know right now and baseing your thoughts on that--but where it is going with this technology!! It would be awesome to have a almost dead quite sled that would haul like that!!!


H20SKE...
 
Well, they may invent something that only weighs 30 pounds, and stores 50KW-hrs of energy, but it won't be a battery. The best you could hope for is a fuel cell that works off liquids.

Batteries have progressed slowly. Lead acid is still in high use. But, some new technologies such as lead coated carbon pick up, batteries have a lot of promise, to half the weight of lead acid's in cars.

Lithium Sulfur promises to half the weight of LiPo Lithium Polymer batteries. But past that, I don't think their is a element that can store more charge per low atomic number.

Even then, were talking about at least 200 pounds of batteries, and more like 400 pounds, at best.

Here's a nice picture of battery progression. You could make the argument that we've 5X'ed battery energy per weight, but I believe it's only due to moving straight to the lightest element known.

400px-Secondary_cell_energy_density.svg.png
 
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