What Is Wireless Charging?

Written by: Joanavi Fernan


Mobile Phone Wireless Charging Explained

These days our mobile phones have become an extension of ourselves. With over four billion users globally and expected to hit five billion by the decade's end, it's hard to imagine life without these handy devices. Yet, the dread of seeing our phone's battery life dwindle to nothing is a feeling we're all too familiar with. The daily hustle often leaves us with our devices clinging to life, tied down to the nearest outlet for a recharge. But what if there was a way to keep our phones powered up throughout the day without the constant search for plugs and the hassle of tangled cords? In this article, we'll explain what is wireless charging, how it works. So, if you're ready to cut the cord and step into the future of charging, keep reading.

Brief History of Wireless Charging Technology

Wireless charging might sound like something out of a sci-fi novel, but it's becoming more of a reality daily. Imagine walking into a café or sitting down at your desk, and your phone begins to charge automatically. No wires, no plugs, just pure convenience. This isn't a distant dream—the technology is here and slowly integrating into our daily lives.

Wireless charging, or inductive charging, relies on a principle discovered in the mid-1800s by Michael Faraday called electromagnetic induction. 

Simply put, when an alternating magnetic field is applied to an electric conductor, it generates current. Fast-forward to the late 1800s and Nikola Tesla took this concept further by demonstrating resonant inductive coupling, which allowed for more efficient power transfer between two coils tuned to the same frequency.

Despite its early discovery, practical applications for wireless charging have only been in the past few decades. It wasn't until the rise of consumer electronics that the potential for inductive charging truly shone through. From toothbrushes in the 1990s to mobile phones in 2008, wireless charging began to make its mark on the world.

Today, wireless charging is gaining traction beyond just mobile phones. Electric cars, biomedical devices like pacemakers, and even furniture are beginning to incorporate this technology. The Qi standard, developed by the Wireless Power Consortium, has emerged as the frontrunner, paving the way for our devices to stay powered without ever needing to plug them in? 

Read more here to explore the innovative technology behind Qi

How Does Wireless Charging Work?

Let's explore how this wireless charging process works a bit more. At its heart, an inductive charger isn't as complicated as it might seem. It primarily consists of a few key components.

  • Transmitter: This wireless charging pad or stand sends the charging signal. It primarily consists of an AC source from a typical wall outlet, an oscillator, an electrical circuit, and the transmission coil.
  • Receiver: The coil in your device that picks up the signal and converts it into power. This coil is a neatly wrapped bundle of copper wire that springs into action once the alternating current flows through it, creating what's known as magnetic flux.
  • Resonant Coil: In some systems, a resonant coil is used to improve the efficiency and range of wireless charging.

The strength of this magnetic field varies based on several factors, such as the coil's number of turns, its diameter, and the distance from the device being charged. Over on the phone's end, a similar coil sits quietly, waiting to catch this magnetic field. Once it does, it converts this energy into the electric current that your phone's battery drinks up to recharge.

The science sounds straightforward, but the dance between the transmitting and receiving coils is delicate. Both sides of the system are tuned to resonate at the same frequency, allowing for efficient energy transfer. However, efficiency takes a hit if the coils are not aligned perfectly or there's too much distance between them. That's why some chargers and devices use multiple coils and smart systems to adjust and optimize charging, no matter how you place your device on the pad.

Types of Wireless Charging:

  • Inductive: This is the most common type, where the transmitter and receiver coils are close to each other.
  • Resonant: This type uses a resonant coil to allow for more flexibility in the distance and alignment between the transmitter and receiver.
  • Radio Frequency: This newer technology uses radio waves to charge devices over longer distances, even through walls.

Watch the video below to learn more about how wireless charging works. 

Wireless Charging Standards

Wireless charging has come a long way, and several standards are used today. Let's look at the most popular ones: Qi, PMA, and AirFuel.

1. Qi

Qi (pronounced "chee") is the most widely adopted wireless charging standard. Many smartphone manufacturers, including Apple and Samsung, use it. Qi chargers are known for their reliability and efficiency.

2. PMA

PMA, or Power Matters Alliance, is another wireless charging standard. It's less common than Qi but is still used by some devices. PMA chargers are known for their versatility and can also support other power transfer technologies.

3. AirFuel

AirFuel Alliance is a newer wireless charging standard aiming to combine Qi and PMA's best features. It offers compatibility with a wide range of devices and is designed to be fast and efficient.

When comparing these standards, Qi is often considered the most efficient and widely compatible. PMA while less common, offers versatility, and AirFuel aims to combine both strengths.

Regarding efficiency, speed, and compatibility, Qi stands out as the most reliable and widely supported standard. However, the choice of standard may depend on the specific devices you own and their compatibility.

What Smartphones Support Wireless Charging




iPhone 15 Pro Max, iPhone 15 Pro, iPhone 15 Plus, iPhone 15

iPhone 14 Pro Max, iPhone 14 Pro, iPhone 14

iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13, iPhone 13 mini

iPhone 12 Pro Max, iPhone 12 Pro, iPhone 12, iPhone 12 mini

iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11

iPhone SE (2nd generation)

iPhone XS Max, iPhone XS, iPhone XR

iPhone 8, iPhone 8 Plus


Galaxy S24 Ultra, Galaxy S24+, Galaxy S24

Galaxy S23 Ultra, Galaxy S23+, Galaxy S23

Galaxy Z Flip 3, Galaxy Z Flip 4, Galaxy Z Flip 5

Galaxy Z Fold 4, Galaxy Z Fold 5

Galaxy S22 Ultra, Galaxy S22+, Galaxy S22

Galaxy S21 Ultra, Galaxy S21+, Galaxy S21

Galaxy Note 20 Ultra, Galaxy Note 20

Galaxy S20 Ultra, Galaxy S20+, Galaxy S20

Galaxy Note 10+, Galaxy Note 10

Galaxy S10 5G, Galaxy S10+, Galaxy S10, Galaxy S10e

Galaxy Note 9

Galaxy S9, Galaxy S9+

Galaxy Note 8

Galaxy S8, Galaxy S8+


Pixel 8, Pixel 8 Pro

Pixel 7, Pixel 7a

Pixel 6 Pro, Pixel 6

Pixel 5a, Pixel 5

Pixel 4a, Pixel 4a (5G), Pixel 4, Pixel 4 XL

Pixel 3a, Pixel 3a XL, Pixel 3, Pixel 3 XL

Nexus 4, Nexus 5, Nexus 6, Nexus 7


Xperia 1 III

Xperia 1 II

Xperia XZ3

Xperia XZ2 Premium

Xperia XZ2

Xperia Z3V


Mate 30 Pro

P30 Pro

Mate 20 X

Mate 20 Pro

P20 Pro

Porsche Design Mate RS

Advantages and Disadvantages of Wireless Charging


Wireless charging brings a lot of perks to the table:

  • Convenience and Ease of Use: Say goodbye to tangled cables just place your device on a charging pad and let it do its thing.
  • Reduction in Wear and Tear: Without constantly plugging and unplugging cables, your charging port stays in better shape for longer.
  • Safety Aspects: Wireless chargers are designed with safety in mind, reducing the risk of overheating or electrical issues.Looks More Neat: Without cables, your charging area looks tidier and more organized.


Wireless charging isn't without its challenges:

  • Slower Charging Speeds: Compared to wired charging, wireless charging can be slower, especially for larger devices.
  • Compatibility Issues: Some phones cases and materials can interfere with wireless charging, requiring you to remove them for it to work.
  • Stationary Charging: You can't easily move your phone around while charging on a wireless pad.

Despite these challenges, many find the convenience of wireless charging outweighs these limitations.

Pros and Cons of Wireless Charging

How to Use Wireless Charging

Wireless charging is simple and convenient, but there are a few things to keep in mind to make sure it works smoothly:

Setting Up:

Plug in your wireless charging pad or stand. For optimal performance, use the cable and adapter that came with the charger. Place the wireless charging pad on a flat, stable surface. Avoid placing it near other electronic devices that may cause interference.

Make sure your device is compatible with the charging pad. Not all devices support wireless charging out of the box.

Optimizing Efficiency:

Position your device correctly on the wireless charger. Look for the sweet spot where the device's charging coil aligns with the coil in the charger. Remove metal objects, such as coins or keys, between your device and the charging pad. Metal can interfere with wireless charging.

Troubleshooting Tips:

  • If your device isn't charging, reposition it on the charging pad. Sometimes, a slight adjustment is all it takes to establish a connection.
  • Check that the wireless charger  is plugged in and receiving power. Look for any indicator lights on the charger that signal it's working.
  • Ensure that the power source you're using is working. Try plugging another device into the same outlet to verify.
  • If possible, try using a different charging cable or adapter. Sometimes, a faulty cable or adapter can prevent your device from charging.
  • Restart your device. Sometimes, a simple restart can resolve software issues preventing charging.

By following these tips, you can make the most of your wireless charging experience and keep your devices powered up without the hassle of cables.

Thinborne Slim Cases: The Perfect Companion for Wireless Charging

Thinborne stands out as a beacon of innovation in a world where sleek design meets convenience. At Thinborne, we believe in the beauty of simplicity. Our slim cases are designed to be so slender and lightweight that you'll barely notice they're there. But don't let their delicate appearance fool you; crafted from premium 600D Aramid Fiber, these cases pack a punch in durability, being five times stronger and significantly thinner than steel. This fusion of minimalism and strength ensures your phone is protected without adding unnecessary bulk.

The secret to a seamless wireless charging experience lies in the proximity between your device and the charging pad. The thicker the case, the greater the distance and potential interference, leading to slower charging or, in some cases, no charging. That's where Thinborne Slim Cases shine. Our cases are meticulously designed to maintain the slimmest profile possible, ensuring minimal distance and optimal alignment with any wireless charger. This means your device can receive energy as efficiently as if there were no case at all. It's like having an invisible shield that protects your phone and enhances its charging capabilities.

Choosing Thinborne MagSafe Case
means you no longer have to choose between aesthetics and functionality. The premium 600D Aramid Fiber offers unparalleled protection and adds a touch of sophistication to your device. Its unique texture and finish allow your phone's design to stand out while ensuring it's ready to power up wirelessly at a moment's notice.

Thinborne Slim Case for Seamless Wireless Charging

Future Trends in Wireless Charging

The quest for efficient energy transfer isn't limited to our planet. NASA's investment in a laser-powered climbing robot showcases the potential for energy transfer over long distances, but in the developing stages. While the technology to beam down solar energy from space or to remote satellites is still grappling with significant power loss, the ambition reflects a broader commitment to overcoming the limitations of our current technologies.

As we stand on the brink of a wireless future, it's clear that the path forward is fraught with challenges. The convenience of wireless charging beckons, but so does the responsibility to address its inefficiencies and environmental impact. The journey towards a truly sustainable, wirelessly powered world is complex, requiring engineers, policymakers, and consumers' collective effort.

Ultimately, the question isn't just whether we can make wireless charging everywhere but whether we can do so responsibly. As technology evolves, our aspirations for convenience must be tempered with a commitment to sustainability. Only then can we embrace the full potential of a wirelessly powered future without compromising the health of our planet.

Unlock the full potential of wireless charging with Thinborne Slim Aramid Fiber Cases. Check out our Amazon store to get your hands on the perfect match for a seamless charging experience.

Products Featured In This Blog

Frequently Asked Questions

Does wireless charging offer the same speed as wired charging?

Wireless charging doesn't quite match the speed of traditional wired charging. Wireless charging pads vary in output, typically around 5W to 15W. For context:

Charging an iPhone 8 or Galaxy S10 on a 5W wireless charger might take approximately 3–4 hours.The same devices might charge in about 2.5 hours using a 5W wired charger.

Despite many new smartphones featuring fast-charging capabilities, wireless charging speeds are influenced by various factors such as air temperature, initial battery level, precise placement on the pad, and the phone and battery's age.

Is it safe to charge my phone wirelessly overnight?

Yes, modern smartphones are designed to avoid overcharging. When left on a wireless charger overnight, your phone will stop charging once it reaches 100% and only trickle charge to maintain a full battery when it dips below. However, this process may slightly reduce the overall lifespan of your battery.

Can I wirelessly charge my phone while using a case?

Yes, in most cases. Wireless charging can typically penetrate plastic, silicone, leather, or aramid fiber cases without issue. However, very thick cases or those with metal components may obstruct charging.

Related Readings

About the Author: Joan F

General manager of Thinborne - the super thin phone case made of Aramid Fiber.

"I am a tech nerd who's obsessed with everything Apple. With plenty of experience in the tech world, I enjoy sharing tips and tricks to help folks get the most out of their devices. When I'm not glued to my screen, you can find me hiking or cooking up a storm in the kitchen."