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Dec '20

How Does Wireless Charging Work and Technology Behind It



Wireless charging is transforming the smartphone era. As technology evolves, we’ve been shedding wires easily, from switching to Bluetooth headphones and accessories. With wireless chargers becoming more of an industry-standard, getting the best wireless charger for your phone is essential. 

Wireless charging is a more streamlined way of charging and a lot more organized since you’re not constantly worrying about getting tangled up in USB cords or always needing to have a charging cable on you. It’s simple, convenient, and just a lot easier overall. In this post, we’ll give you an overview of how wireless charging pads work and how wireless charging itself works. 

How does Wireless Charging work?

Firstly, let’s talk about the technology itself. Understanding how charging pads work relies on looking at the separate parts that make up a wireless charger. A wireless charger is made up of coiled wires around a bar magnet, i.e., an inductor. Once an electric current passes through the wires, an electromagnetic field is created around the magnet, helping transfer a charge.

Qi wireless technology has helped transform wireless charging as well. One of the worries associated with creating wireless chargers was to ensure it only charged a phone - not any foreign objects that could land on the charger, such as coins and pens. To combat this, phones now have Qi wireless technology. A wireless charging station works by communicating to a small receiver in a phone, and essentially the charging pad works by “asking” the device if it’s a Qi receiver. 

There are three main methods of wireless charging:

  1. Charging pads: The commonly found wireless charging device on the market, this works through inductive charging.

  2. Charging bowls: An emerging technology, charging bowls rely on resonant electromagnetic charging (i.e., the energy is ‘tunneled’ through coils rather than spread from one primary direction)

  3. Uncoupled RF wireless charging: Charge is transmitted via radio frequency, so no charging plates are needed. This technology is still evolving, so this is something to watch for in the next few years.

When shopping for a wireless charger or a wireless charging pad, the most crucial aspect is the device’s power specs. iPhones and Androids have different limits of charge speeds. iPhones are limited to 7.5W, Samsung at 9W, and some Android phones go up to 10W. Look at the charging speeds a wireless charging device offers to ensure that it’s at the speed you want.

The best wireless charging products from Satechi

Satechi offers wireless charging solutions for iPhones, Apple Watches, Samsungs, and Androids. Here are some of our top picks for wireless charging devices and wireless charging pads:

Quatro Wireless Power Bank | Power & Charging – Satechi

Our Quatro Wireless Power Bank is your essential all-in-one portable charger. The Quatro Power Bank uses the best of both Qi wireless and portable charging to recharge your iPhone 11 or 12 and Apple Watch while on the couch or on-the-go. With a 10000 mAh battery life capacity, the Quatro charger can fully recharge an iPhone 11 or 12 up to two times while away from a power outlet.

Combining the best of both portable and wireless charging, the Quatro Power Bank features a Qi wireless charger, built-in Apple Watch charger, USB-C PD, and USB-A port to recharge multiple devices at once. 

Trio Wireless Charging Pad | Qi Wireless Chargers – Satechi

The ultimate solution, the Satechi Trio Wireless Charging Pad is a simplified wireless charging solution for all your devices. The charging pad can power a Qi-enabled smartphone, Apple Watch, and AirPods Pro simultaneously, making it a great choice. 

Charging speeds are as follows: 

  • Apple Watch Series (up to 2.5W)

  • AirPods with wireless charging case (up to 5W)

  • Qi-enabled iPhone (up to 7.5W) or smartphone 

The Satechi Trio Wireless Charging Pad is designed to be safe and efficient. The charger uses LED lights to indicate when devices have started to charge. It is equipped with foreign object detection (FOD) and over-temperature protection. The Satechi Trio Wireless Charging Pad can detect and cut off power when necessary automatically.

  1. Qi-Certified Type-C PD Wireless Charger | Power & Charging

The Satechi  Qi-Certified Aluminum Type-C Fast Wireless Charger is perfect for quick charging. You can use this with either your Quick Charging (QC) or USB-C Power Delivery (PD) adapter to reach charging speeds up to 7.5W/10W on compatible smartphone devices.

Our wireless charger has a sleek aluminum finish and comes in either space gray or silver. With this wireless charger, you’ll be able to charge compatible iPhones & AirPods Pro as well as fast charge Samsung & Android phones up to 10W. The charger’s LED indicator light will notify you when it’s in use.

Ultimately, Wireless charging is a great way to efficiently charge your phone without needing to manage USB cables or mess up your workspace. Wireless charging technology has advanced by leaps and bounds, and there are a lot of sleek, practical solutions that can charge compatible devices quickly and efficiently.

If you’re still unsure how wireless charging works or whether it’s right for you, why not take a look at our reviews or whatothers say about our productsto see if wireless charging is the right solution for you.

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