High performance battery?

I have seen electric cars claiming to last 300 miles on 1 charge can anyone tell me what kind of batteries they use.
Your answers are much appreciated.
Thank You.

joeschmoe2009-07-13T23:02:49Z

Favorite Answer

The most well-known electric car currently in production and available for purchase right now is the Tesla Roadster, with a 250-mile range on battery power.

It uses a custom-built Lithium-Ion battery pack made from a few hundred laptop Lion battery cells.

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cody_higdon2009-07-13T22:01:16Z

well they are special ionic batteries that you cant really buy lol but they are massive

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