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Green-ion / Portable Cellphone Charger


A knee powered cellphone charger that charges phone by harnessing energy from motion of human legs while walking. And thus keeps your both hands free while you charge your phone. Designed in the form of a stylish pen so that neither you forget it nor is it a bulk to carry along. Just be what you want to be a carefree youth who doesn’t run out of charge.


Indian Institute of Technology

Indian Institute of Technology
Delhi, India


Indian Institute of Technology

Indian Institute of Technology
Bangalore, India

Gulmohar Khan Amaltas Khan