Indian girl invented device that can charge phone in 20 seconds

The charging device has been dubbed a supercapacitor by Esha Khare of Saratoga, California, the Daily Mail reported.Khare won $50,000 for her invention at the Intel International Science and Engineering Fair, held in Phoenix.

Khare has only used her supercapacitor to power a light-emitting diode (LED), but says that one day her invention will power cell phones, cars and any gadget that requires a rechargeable battery.

Asked what inspired her to work on the technology, Khare said: "My cell phone battery always dies.""It has a lot of different applications and advantages over batteries in that sense," she was quoted as saying.

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