Teen invention could charge your cell phone for 20 seconds

You want to make an important call, but your cell phone battery is dead. What are you going to do? well, you have one option left: wait for hours before your cell phone battery is fully charged. But not anymore, a device that could charge your phone for 20 seconds has been invented by a teen.
18 year-old Eesha Khare of Saratoga, California won the Intel International Science and Engineering fair for building a device that could charge a cell phone for 20 seconds. Yes 20 seconds!
The Super-capacitor stored a lot of energy into a small space, charge the battery in seconds and holds that charge for a long time than ordinary batteries.
She showed us how the device works by using it to power an LED bulb. She said the device could fit into cell phone batteries, that means it could charge electronic portable devices.
She received the $50,000 prize money for wining Intel International Science and Engineering Fair

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