QI Charging Technology Explained


What is Qi Inductive Wireless Charging?

Qi (pronounced chi) is an open interface standard that defines wireless power transfer using inductive charging over distances of up to 4 cm (1.6 inches)

You'll find Qi charging in all the major phone brands, from iPhone, Google Pixel, Samsung Galaxy, & many more. You can also find third-party wireless chargers will also support the Qi standard.

How does it work?

Inductive charging works by utilizing "Oersted's law." This states that when an electric current flows through a wire, it generates a magnetic field. Even better, if you create a tight coil and run electricity through it, it creates an even stronger magnetic field. This little coil is what you'll find in a wireless charging pad—it's sitting there, converting an electrical current into an electromagnetic field, waiting for something to come along and "take" that energy.

Of course, you can't just hold a battery in a magnetic field and expect it to charge up. You have to set up a receiver that can take this electromagnetic field and convert it back into an electric current. In this example, the best receiver happens to be yet another coil.

To transfer electricity through the air, you can put an electric current through the induction coil and then place a receiver coil nearby. The induction coil turns the electric current into an electromagnetic field due to Oersted's law.

If a receiver coil is placed within the field, it takes the electromagnetic energy and turns it back into electricity. You can then direct this electric current wherever it needs to go—like into your phone's battery, for instance.

So to answer the question: Is wireless charging good or bad for your phones battery. It is perfectly safe and will not adversely affect your batteries performance in the short or long term us of Qi technology.

I get paid to lead not to read, show me a video!

Checkout this video for more information on Qi Charging - https://youtu.be/tYru_6E1xmY 


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