Charger Design

Over a century ago, Nikola Tesla changed the world with the invention of the Tesla coil, which showed that electricity can be transmitted through the air instead of requiring wires. Since then, technology developers and other inventors have…

The Spring Charger adds a spring to the plugging wire so that you get extendable cords to charge your smartphone anywhere. Most charging wires design are straight and long without the sense of flexibility. The Spring Charger has a line much…