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Originally Posted by maxxdude1234
Metalman, I think you've got to realise that these A123 cells are not aimed at the rc market, they're aimed at big heavy powertools are other such applications. For powertools, 100C burst discharge is quite neccessary and 20C charge is also pretty handy! I don't think these cell's are designed to be the next ultra-lightweight, energy dense lithium cell -they're built to be heavy duty, and going by some of the info on that site I would say they do a pretty good job.
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They are also for hybred cars, they are designing a toyota prius battery that weighs 20 lbs compaired to the stock 100 lb NmHi battery, so they may come through in the energy density too. They are using nano technology to improve the cells, if someone starts using the same technology on lipo cells then we will definately have the best of both worlds