Things to know about wireless charging.

The world today is moving to a new phase and very soon the story of charger damage will be a thing of the past because very soon cell phone wireless charging will be the order of the day.Wireless charging is convenient, just lay your phone on a pad or stand and it sucks up the juice.
What is wireless charging?

It's the transfer of power from a power outlet to the device, without the need for a connecting cable. Wireless charging involves a power transmitting pad and a receiver, sometimes in the form of a case attached to a mobile device or even built into the phone itself.

How does wireless charging work?

  • Inductive charging
  • Transmitter and receiver create an electromagnetic field

Wireless charging is based on inductive charging, whereby power is created by passing an electrical current through two coils to create an electromagnetic field.
When the receiving magnetic plate on the mobile device comes into contact with the transmitter - or at least within the specified range - the magnetic field generates an electrical current within the device.
This current is then converted into direct current (DC), which in turn charges the built-in battery.

What are the standards for wireless charging?
  • Qi and Powermat
  • Qi adopted by majority of smartphone manufacturers
  • Powermat less recognized
There are a few standards floating around. The main one that you will most likely have heard of is Qi (pronounced "Chee"). Qi is a standard that has been developed by the Wireless Power Consortium (WPC) for inductive charging over distances of up to 40mm.

Qi has three separate power specifications, beginning with low power, which can deliver up to 5W and is primarily used for charging mobile devices and smartwatches.

There is a medium power spec, which can deliver up to 120W and is used for monitors and laptops. And there is a high spec that can deliver up to 1kW to power things such as kitchen utensils.
Qi wireless charging has been adopted by many of the major smartphone manufacturers: Samsung, Sony, LG, HTC, Huawei, Nokia, Motorola, and Blackberry.

The other standard that has the potential to steal the limelight from Qi is PMA or Powermat. It too works on inductive charging, but in 2014, PMA signed a deal with another wireless charging consortium, the Alliance for Wireless Power (A4WP). It works on magnetic resonance charging instead. The deal means the two companies can exchange technologies and patents, to help evolve wireless charging at a much faster rate.
What phones support wireless charging?
The majority of the phones only supports Qi wireless charging. However, some, such as the Samsung Galaxy S6 and S6 Edge, along with the Blackberry Priv, support both Qi and PMA standards. They both have the technologies built into their chassis too.
These are the other major phones that have built-in support for Qi charging:

Asus Padfone S
BlackBerry Z30
Google Nexus 4
Google Nexus 5
Google Nexus 6
Google Nexus 7
LG Optimus G Pro
Samsung Galaxy Note 5
Samsung Galaxy Note 8
Samsung Galaxy S7
Samsung Galaxy S7 Active
Samsung Galaxy S7 Edge
Samsung Galaxy S8
Samsung Galaxy S8 Plus
Samsung Galaxy S9
Samsung Galaxy S9 Plus
Samsung Galaxy S
Sony Xperia Z3V
Sony Xperia Z4V
Microsoft Lumia 950
Microsoft Lumia 950 XL
Motorola Droid Maxx
Motorola Droid Mini
Motorola Droid Turbo
Motorola Droid Turbo 2
Motorola Moto X Force
Nokia Lumia 735
Nokia Lumia 830
Nokia Lumia 920
Nokia Lumia 928
Nokia Lumia 929 / Icon
Nokia Lumia 930
Nokia Lumia 1520

Can I get a wireless charging adapter for my phone?

Cases and adapters available for the majority of phones
You'll notice that not many recent phones actually have the technology built-in, most of them require an adapter or a case to be attached in order to support Qi charging.
Just some of the phones that support a wireless charging adapter include:
HTC 10
Samsung Galaxy S5 - an internal adapter that is fitted inside the phone, behind the battery cover.
Samsung Galaxy S4
Samsung Galaxy S3
Sony Xperia Z3
Sony Xperia Z2
Sony Xperia Z

The Wireless charger is available in the mobile market as cheap as #2000 and I'll advice you get one in case you phone supports it. 
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