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Daizi Xheng a chinese developer, found a way of replacing the lithium-ion batteries we use in our phones for a more efficient and environmental friendly solution. He proposes a bio-battery that lasts longer than regular batteries using any sugary solution as a source of fuel, for example: Coca Cola.

There is a massive proliferation of smartphones and app-phones flooding the market. With such speed that the general public is almost overwhelmed by it.
There is so much you can do with a Smartphone nowadays, that is easy to forget you can still make phone calls with them.