Lumia 920 - Wireless charging

We all have come a long way over the last two decades in the field of technology. Men’s thirst for innovation and technology can never be quenched and tossing all the limitation aside handling technology has become easier. Mobiles, laptops, tablets and all electronic devices have become a pivotal part of our daily life and major breakthrough in technology came with the invention of “wireless charging”. Let’s try to know more about wireless charging.

Who was behind the concept of “Wireless Charging”?

Wireless electricity technology,“WITRICITY” was developed by a team of researchers from Massachusetts Institute of Technology in 2007. Wireless charging is an experimental concept introduced by Nikola Tesla, an electrical engineer by profession and with seeming efforts wireless charging has now become more possible to reach the common folk.

What do you actually mean by “Wireless Charging”?

In general , we can conclude that anything that eliminates the usage of wire can be called as wireless but reflecting this definition in our day-to-day life can be quite challenging. Wireless charger, also known as “Inductive charging device”, is a device which transmits electric energy through magnetic (radio) waves. In simple words, electric energy generated by the source is converted into magnetic field which is used to transfer electric power from source to the receiver coil (charging pad) . Wireless charging has become the Holy grail in the world of mobiles and it is not simply magic but magic of science.

It is important to note that all wireless chargers do not power all devices  effectively.

Devices which can adhere to “wireless charging” for getting charged

Smart phones, tablets, e-readers, laptops, music player and camera are the list of portable devices which require to be charged timely and we have to run and grab the cables to provide the power to these devices to get started but what if they can be charged wirelessly? Yes, lot of devices have got in alliance with the wireless charging technology.Wireless charging group has expanded from mobiles to laptops now. Dell and Intel have now become new members in the community of wireless charging, these companies want to cut another power cord and let users charge their laptops wirelessly.The list is not so short as Qualcomm, Samsung, HTC, Broadcom, LG and Panasonic have also signed up with the Alliance For Wireless Power. Dell has unvieled the details on its wireless charging Latitude Z laptop .

Wireless charging promises greater convenience to the Smart phone users and keeping this in mind,the mobile manufacturers are greasing their elbow hard to enroll the wireless charging technology into their handsets. Lets unleash the list of Smartphones with wireless charging feature.

  • Google Nexus 5
  • Google Nexus 4
  • HTC Windows Phone 8X (Verizon)
  • Nokia Lumia 920 (AT&T)
  • LG Spectrum 2 (Verizon)
  • Nokia Lumia 810 (T-Mobile)
  • HTC Droid DNA (Verizon)
  • Samsung Galaxy s4
  • Nokia Lumia 928
  • DROID MINI by Motorola
  • DROID MAXX by Motorola
  • Blackberry Z30
  • LG G2
  • HTC 8X

This is just a small list of the top of my head, there are still many phones and tablets that support wireless charging. For some phones like Lumia 720, wireless charging support can be added with an accessory.

Nexus 4


Dell’s Latitude Z 

How to determine if you can use a wireless charger to power up your smartphone?

Wireless charging accessories should be Qi certified. Don’t get muddled while searching the Qi logo anywhere in your smartphone. It has look of magnifyng glass focussed on the letter (i). The complete list of Qi wireless certified devices can be found here

new qi

Qi charging pad
Qi charging pad

Wireless charging may not be fuss-free

Wireless charging is one of the many features that can now be seen in manysmart phones but can this feature be smooth for our all the electronic devices? Let’s try to dig in details.

There are few disadvantages associated with wireless charging and these are:

  • Due to lower efficiency, devices may take longer time to charge when supplied power is equal
  • Complexity in cost of manufacturing
  • When a mobile device is connected to a cable, it can be freely moved around and operated while charging but in case of wireless charging the mobile needs to be kept on a pad and hence cannot be operated freely
  • Lower efficiency and increased resistive heating in comparison to direct contact.
  • A typical wireless charger consumes anywhere between 4 to 8 Watts of energy to charge for an example a 3000mAH battery. Direct wired charging is much more efficient compared to wireless charging

But, disavantages are overshadowed by advantages of wireless charging .With out any open connectors and wires our safety is secured eliminating the risk of short circuit and electrical leaks. Moreover,many scientists claim that small amount of electromagnetic radiation given out by wireless charging is less harmful. The release of electromagnetic rays is further eliminated by additional shielding in the sending and receiving coils of the Qi standard.

Here are some of the Wireless Pads and Accessories you can purchase online:

[amazon text=CHOE Upgraded Qi Wireless Charging Pad&asin=B00C40OG22]

[amazon template=tgd large image&asin=B00C40OG22]

[amazon text=Nokia Wireless Charging Plate DT-900&asin=B00A3NCC5K]

[amazon template=tgd large image&asin=B00A3NCC5K]

[amazon text=TYLT Vu Wireless Charger for all Qi Phones&asin=B00DG8NUC8]

[amazon template=tgd large image&asin=B00DG8NUC8]

[amazon text=Koolpad Qi Charge&asin=B00DQDE1K8]

[amazon template=tgd large image&asin=B00DQDE1K8]

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