What is QI Wireless Charging and how does it work?

What is Wireless Charging?

Wireless Charging, also known as Inductive Charging, is a convenient and cable-free way to charge your electronic devices. It requires two things:

  1. A charger, usually in the form of a puck, a mat or a stand that connects to a power source.
  2. A smartphone, smartwatch or other electronic device that is compatible with wireless charging.

Now you’re ready to charge! Simply place your phone onto the charging base and charging starts immediately.

 

How Does Wireless Charging work?

qi logoWhat is QI?

Qi is an established, evolving wireless charging standard owned by The Wireless Power Consortium and backed by more than 200 leading companies including Apple, Philips and Belkin. Their goal is to deliver wireless charging easily and safely, while ensuring compatibility across all devices that bear the Qi logo.

Qi standard products include:

  • iPhone X
  • iPhone 8 Plus
  • iPhone 8
  • Samsung Galaxy S8
  • Samsung Galaxy Note8

It’s important to make sure you have the right charger to charge your smartphone or tablet. Look for the Qi logo on packaging to check compatibility with your Qi phone before you buy.

Inductive vs. Resonant Charging

There are two different types of Wireless Charging. Here’s what you need to know.

inductive qi wireless charging

 

resonant qi wireless charging

 

Inductive

Requires direct physical contact between the phone and wireless charger. The charging coils inside the phone and the charger must be connected and aligned.

Resonant

Requires the phone, wireless charger and charging coils within each, to be within a specific proximity but do not need to be touching.

 

inductive qi wireless charging

Inductive

Requires direct physical contact between the phone and wireless charger. The charging coils inside the phone and the charger must be connected and aligned.

 

resonant qi wireless charging

Resonant

Requires the phone, wireless charger and charging coils within each, to be within a specific proximity but do not need to be touching.


How Inductive Wireless Charging Works

The secret to how wireless charging works is electromagnetic induction:

  1. A transmitter coil in the charging base sends out a signal.
  2. The signal searches for a receiver coil, like the one in your compatible smartphone.
  3. When it senses one, electromagnetic induction begins.
  4. The electrons (electricity) inside the transmitter coil start to flow around in the coil.
  1. This generates a magnetic field, which is sensed by the electrons in the receiver coil.
  2. The electrons trapped inside the receiver coil start to flow around the coil due to the magnetic field. This flow of electrons inside the receiver coil is the electricity powering the battery in your smartphone.

how does wireless charging work

NOTE: Charging device must be no more than 8mm from the charging coil to receive charge from wireless power source.

 

Why you want Wireless Charging

Freedom

The beauty of wireless charging is that it’s easy to quickly charge your smartphone wherever you are. Literally, just set down your phone and it starts to charge, so whenever you’re not using it, you’re charging it. No cables, no clutter, no waiting.

nightstand icon laptop icon car icon walking icon

Nightstand

A wireless charging pad on your nightstand can provide power to fuel your phone for most of the day.

Desk

A stand on your desk provides a power boost while you’re at work.

Car

Wireless car chargers keep your battery levels up on the road.

On The Go

A wireless power bank or wireless portable charger provides ultimate freedom from cables to charge up when you’re on the go.

nightstand icon laptop icon

Nightstand

A wireless charging pad on your nightstand can provide power to fuel your phone for most of the day.

Desk

A stand on your desk provides a power boost while you’re at work.

car icon walking icon

Car

Wireless car chargers keep your battery levels up on the road.

On The Go

A wireless power bank or wireless portable charger provides ultimate freedom from cables to charge up when you’re on the go.

   

wireless charger case compatibility

Case Compatible

Although wireless charging requires a physical connection between a phone and the charger, most wireless charging pads will work through a thin plastic phone case up to 3mm. This means there is no need to remove your smartphone from the case to start charging.

Browse Cases >

wireless charger case compatibility

 

Easy Alignment

wireless charging alignment

 

Your smartphone starts charging as soon as it makes contact with the charger – with no cable to join to a specific connector. This means multiple charging positions: landscape, portrait or anywhere in between. From wireless charging pads to portable power banks, there are wireless charging solutions to fit seamlessly into your life.

 

Fastest Charging Speeds

Can Your Wireless Charger Keep Up?

Make sure your wireless charging pad is compatible with your phone to get the fastest wireless charging possible. There are many wireless chargers in the market today delivering up to 15W output, but they may not be finely tuned for your device. For example, the 7.5W BOOST↑UP™ Wireless Charger has been tuned to deliver 7.5W fast charging for the new iPhone X, iPhone 8 Plus, and iPhone 8, while 15W chargers on the market have not and will only charge the new iPhones at 5W. Similarly, the Samsung Galaxy smartphones are capable of charging up to 9W wirelessly when using a wireless charging pad specifically tuned for the Samsung Galaxy. Therefore, compatibility is important to unlock faster charging!

 

 standard charging speed speedometer icon = Standard 5W Charging iphone icon samsung icon smartphone icon
 fast charging speed speedometer icon = Faster, Optimal Charging
iPhone* Samsung** Other Qi Device
 5W Qi-Certified Charging pad standard charging speed speedometer icon standard charging speed speedometer icon standard charging speed speedometer icon
 10W Qi-Certified Charging Pad standard charging speed speedometer icon standard charging speed speedometer icon standard charging speed speedometer icon
 15W Qi-Certified Charging Pad standard charging speed speedometer icon standard charging speed speedometer icon standard charging speed speedometer icon
 Apple 7.5W Compatibility standard charging speed speedometer icon standard charging speed speedometer icon standard charging speed speedometer icon
 Samsung 9W mode standard charging speed speedometer icon standard charging speed speedometer icon standard charging speed speedometer icon
 Universal 5-15W Qi, Apple 7.5 and Samsung 9W standard charging speed speedometer icon standard charging speed speedometer icon standard charging speed speedometer icon

 

* iPhone 8 and above

** Samsung Galaxy S6 and above

Browse Wireless Chargers >

 

Our Wireless Chargers

 Belkin Valet Charger Power Pack 6700 mAh for iWatch + iPhone

 Belkin PowerHouse Charge Dock for iWatch & iPhone

 

Belkin Valet Charger Power Pack 6700 mAh for iWatch + iPhone

Belkin PowerHouse Charge Dock for iWatch & iPhone

Belkin BOOST UP Wireless Charging Pad for Samsung

Belkin BOOST UP Qi Wireless Charging Pad

Belkin BOOST UP Wireless Charging Pad for Samsung

Belkin BOOST UP Qi Wireless Charging Pad

  Belkin Valet Charger Power Pack 6700 mAh for iWatch + iPhone

Belkin Valet Charger Power Pack 6700 mAh for iWatch + iPhone

 

Belkin PowerHouse Charge Dock for iWatch & iPhone

Belkin PowerHouse Charge Dock for iWatch & iPhone

Belkin BOOST UP Wireless Charging Pad for Samsung

Belkin BOOST UP Wireless Charging Pad for Samsung

 

Belkin BOOST UP Qi Wireless Charging Pad

Belkin BOOST UP Qi Wireless Charging Pad

 

 


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