• Follow us

Gadgets

The State of Wireless Charging in 2019 and Beyond | Digital Trends

state of wireless charging 2019 charger

Wireless power is ubiquitous now. We use it to charge devices like electric toothbrushes, smartwatches, and earbuds, but most of us use it to charge our smartphones. What we’re talking about here is near field induction charging, and there are a few reasons it has finally taken off for phones in the last few years.

One of them is the Wireless Power Consortium’s victory over Powermat: the Qi wireless charging platform won, after a lengthy standards battle. The technology has also improved enormously – the first wireless charging mats delivered just 2.5 watts, whereas the latest spec allows for up to 15 watts. Then there’s the fact that Apple finally adopted Qi wireless charging in the iPhone range, joining Android manufacturers that have supported it for years such as Samsung, Google, and LG.

“Some companies are more adventurous and go faster,” Menno Treffers, founder and chairman of the Wireless Power Consortium, told Digital Trends. “Some companies are a little more conservative and a little slower.”

Near field wireless charging is thriving, but it still depends on fairly close contact.

Many of us have wireless charging pads on the desk at work or on the nightstand at home. It’s convenient and easy when you have time to charge, though you may still prefer to plug in when you need a burst of battery power in a hurry.

“It’s not an either / or,” Treffers said. “You need both.”

Qi wireless charging is also making inroads into infrastructure, with pads popping up in restaurants and trains. One of the big advantages is that wireless charging pads don’t require the same level of maintenance as USB ports do. Ports break with wear and tear, both in your devices and wherever you’re plugging in. Wireless charging can cut down on that, and there’s no evidence that it degrades your battery faster than wired charging.

The Wireless Power Consortium has its sights set on the kitchen next, with big wireless charging pads that sit beneath your worktop and can deliver 2KW to wirelessly power blenders or hotplates. This can help people when space is at a premium — and it may be the answer to the minimalist kitchens of our dreams.

state of wireless charging 2019 energous phone Energous

The organization will also continue to push the upper limits of smartphone charging.

“For phone charging, it’s just a matter of increasing the power we can deliver while maintaining safety,” Treffers said.

But while near field wireless charging is thriving, it still depends on fairly close contact. What about sending power further?

Wireless power over distance is still coming

Wireless power over distance is a nascent category but it constantly feels as though it’s on the verge of a breakthrough. Last year, we posed the question: When will your phone charge wirelessly in your pocket? The answer was “soon” … and we’re still waiting.

Having seen working demonstrations from Ossia — transmitting power to a phone case over a distance of a few feet to slowly charge the phone inside — we know that the tech works. Ossia recently partnered with case maker Spigen to bring this technology to market. At CES 2019, Spigen CEO Daeyoung Kim said the company is hoping to release some kind of transmitter and power receiving case package by 2020.

“Power through the air has existed for a while.”

The problem is there are limits on the power that can be delivered, and that’s tied up with the difficulty of getting certification.

“Power through the air has existed for a while,” Treffers said. “It’s not technically difficult, but making it efficient is hard.”

The Ossia demo we saw involved a large transmitter sending out 10W and a receiving device that could pick up around 1W within six feet of the transmitter. Beyond that distance the charge dropped down to milliwatts and eventually microwatts.

state of wireless charging 2019 ossia spigen

When the power demands of the receiving device are very low (retail price tags, for example), you can safely and easily transmit power to them. A company called Powercast has developed several products, including e-ink retail tags that don’t have any battery inside and can be updated wirelessly. It has FCC approval because the power levels are very low, and it has managed to achieve a maximum range of 80 feet.

But what if the receiving device requires more than just a few microwatts of power? Charging a phone with 5W is considered slow nowadays, but to get anywhere close to that with wireless charging through the air, you’d have to transmit an enormous, possibly unsafe, amount of power.

“The efficiency is horrible, and you immediately get into issues with regulators on consumer safety,” Treffers said.

The FCC limits currently in place were not designed with wireless power in mind, but rather to keep wireless communication safe.

One of the biggest companies promising wireless power over distance is Energous. There was some buzz about FCC certification towards the end of 2018, but that was just for its near field solution, which is a lot like the Qi wireless charging we’re already using. More notable was the approval it won in 2017 for sending power over distance.

It may be useful for keeping fitness bands, headphones, or TV remotes charged up, but it’s not enough for phones.

While Powercast is certified under Part 15, which is designed for telecommunications devices and limits power transmission to 1 watt, Energous was certified under Part 18, which has no limitations on power or distance, provided it can be delivered safely. While there’s a theoretical difference there, for all intents and purposes there doesn’t seem to be a practical difference — yet.

At the moment, the amount of power they are delivering is measured in milliwatts. It may be useful for keeping fitness bands, headphones, or TV remotes charged up, but it’s not enough for phones.

Energous has partnered with Dialog Semiconductors to develop a wireless charging receiver chip, but beyond the near field charging, all we’ve seen so far is mock ups and concepts. Various wearable manufacturers seem interested and at least one big phone manufacturer is reportedly licensing the technology.

Powercast

There have been persistent rumors that Energous is working with Apple, which the company has done nothing to dispel. But whether it’s Apple or another phone manufacturer, there’s no telling what they have in mind for the tech right now – it might not even be phone charging.

It’s worth noting that near-field Energous charging does have an advantage over Qi: It doesn’t require coil alignment, so antennas can be put in flexible material — think watch straps. You don’t necessarily need the same flat surface contact. While the trickle charge at distance wouldn’t be a big enough draw to persuade people to bite, if it works in addition to the near field, with the same chip, then it may be an easier sell.

Major barriers to overcome

There are many other players out there in the wireless charging landscape from Wi-Charge to WiTricity, not to mention uBeam, which employs ultrasound to transmit energy. But the longer it takes for someone to get a consumer product out there, the more our natural skepticism grows.

For wireless charging to deliver meaningful amounts of power over distance, it needs to solve the efficiency problem. We’ve already seen some beamforming, meaning the transmitter shakes hands with the receiver and fires power directly to it, rather than blasting out watts in all directions.

For wireless charging to deliver meaningful amounts of power over distance, it needs to solve the efficiency problem.

Still, even in ideal conditions, if you compare wireless power over distance to wired or Qi wireless charging, it’s very inefficient; you’re losing the vast majority of the energy you send out. While wired charging is somewhere around 85 percent efficient, Qi wireless charging started around 60 percent, but has now reached 75 percent and up.

Wireless charging over distance is more complicated because it drops off the further away you are, but we’re looking at somewhere around 10 percent efficiency at relatively close range. If you’re concerned about responsible use of power, that inefficiency is going to be a problem.

Safety is another big issue. The ability to direct power with beamforming techniques potentially makes it safer, because it can help the transmitter avoid firing power at people. But even if these companies can win FCC approval and certification in other countries follows, they still need to convince the general public that it’s safe.

When talking about this technology, one of the first questions we always get asked is about how safe it is, and that’s because it’s not intuitively safe. The convenience is a big attraction, but it will take time to convince people that there’s no risk.

We’re still excited about technology that can wirelessly charge the phone in our bag or pocket without any effort on our part, but there’s still no telling when we’ll actually see it in a product you can buy.

Editors' Recommendations Read More



Leave A Comment

More News

Digital Trends

Global Good wants to rid the world of New! 2019-02-16 04:00:45Global Good, a collaboration between Intellectual Ventures and Bill Gates, aims to eradicate diseases that kill children in developing nations. It tac

Walmart drops a killer Instant Pot deal for New! 2019-02-16 03:01:45With the Walmart Presidents' Day sale going on right now, you can actually pick up the Instant Pot Lux60 6-quart programmable pressure cooker for jus

Take a gander at the best deals on New! 2019-02-16 01:02:56There's no doubt that a good 4K smart TV is the best way to take your home entertainment setup to the next level to enjoy all your favorite shows, mo

The best Presidents’ Day sales 2019: Amazon, Walmart, New! 2019-02-15 20:03:38Presidents' Day sales are a great chance to score electronics, clothing, home and office stuff, and other goodies at a discount. We’ve smoked o

Marvel’s streaming Loki series gets a plot summary New! 2019-02-15 19:54:02A Rick & Morty writer will oversee Marvel's Loki series for Disney Plus. Tom Hiddleston is expected to reprise his role for the show, while the s

Consumer groups call out retailers in a bid New! 2019-02-15 19:40:18Consumer groups posted a "Dear retailer" letter on February 12 that called out Walmart, Best Buy, Amazon, and Target, shaming the companies for sell

Digital Trends Live: Galaxy Buds, dangerous A.I., and New! 2019-02-15 19:20:47On episode 67 of Digital Trends Live, DT's live morning show, Greg Nibler and Parker Hall explored the biggest tech news of the day, including Samsun

‘Star Wars: Episode IX’: Everything we know so 2019-02-15 18:21:08Star Wars: The Force Awakens director J.J. Abrams has wrapped production on Star Wars: Episode IX, which he directed and co-wrote. Here's everything

The 10 most expensive drones that you (a 2019-02-15 18:10:14OK, these drones may be a bit beyond your budget: Check out the most expensive drones in the world, from industrial giants to highest-end filming tool

The Breaking Bad sequel might air on Netflix 2019-02-15 17:57:53A Breaking Bad sequel starring Jesse Pinkman (and, possibly, Walter White) is on the way from series creator Vince Gilligan, and you might get your fi

Underground volcanoes could explain possible liquid water on 2019-02-15 17:24:22Last year scientists discovered there could be liquid water on Mars. Now a research team argues that for there to be liquid water, there must be an un

NASA’s MAVEN orbiter has a new job as 2019-02-15 17:08:15NASA's Mars Atmosphere and Volatile Evolution (MAVEN) orbiter has been collecting atmospheric readings but now is taking on a new job as a data relay

Engadget RSS Feed

Twitter removes tweet from Iran's leader, citing company New! 2019-02-16 05:02:00Once again, Twitter has run into a sticky situation while deciding when and how to apply its content rules. Buzzfeed News reports that it removed a tw

Website uses AI to create infinite fake faces New! 2019-02-15 22:52:00You might already know that AI can put real faces in implausible scenarios, but it's now clear that it can create faces that otherwise wouldn't exis

'Pokémon Go' settlement promises action on nuisance Pokéstops New! 2019-02-15 21:05:00Niantic, the creator of Pokémon Go, has reached a tentative settlement in a class action lawsuit filed against the company by homeowners wh

CBS reached its streaming subscription target two years New! 2019-02-15 19:29:00With cord-cutting on the rise, it seems there's enough room at the table for more internet-only services. CBS is now reporting that its streaming pla

Nerf's 'Fortnite' guns will be here March 22nd 2019-02-15 17:39:00If you thought Hasbro was already milking the Fortnite trend for all it's worth with an official Nerf gun, you haven't seen anything yet. The toy ma

Inside Nike's DIY studio for Snapchat selfie filters 2019-02-15 16:41:00Snapchat's Lens Studio, which lets anyone create their own augmented reality filters, has been a big hit for the company. There are now more than 250

PowerUp Toys is motorizing more paper vehicles 2019-02-15 16:17:00PowerUp Toys, the makers of a smartphone-controlled paper airplane kit, is at Toy Fair 2019 with three new gizmos to occupy your free time. The compan

Updated Mormon rules let missionaries call or text 2019-02-15 15:57:00Until now, Mormon missionaries have only allowed to use phone calls or video chats to reach their families on Christmas and Mother's Day. After that

High-tech Pictionary is more challenging than using a 2019-02-15 15:36:00Pictionary seems like one of those perfect games that doesn't really need an upgrade. You draw on a piece of paper, and people guess what you're try

NBA game recaps are coming to Facebook Watch 2019-02-15 15:09:00You'll soon get to see official highlights from every NBA game on Facebook, after the two signed a deal to stream recaps on the Watch tab. The agreem

Hasbro's Bluetooth lightsaber lets kids train to become 2019-02-15 14:13:00Hasbro has a new toy for the future Jedi in your life. The Star Wars Lightsaber Academy is a suped-up version of the standard lightsaber that comes wi

Amazon's first 'Lord of the Rings' teaser is 2019-02-15 13:05:00As things stand, we know very little about Amazon's Lord of the Rings Prime Video series. We do know it will last several seasons and it will include

WIRED

Best MacBooks for 2019: Which Model Should You 2019-02-09 08:00:00It's never been harder to buy the right Apple laptop. Let us help you with our MacBook buying guide.

18 of Our Favorite Valentine's Deals for Your 2019-02-09 07:00:00If you’re planning on giving someone a thoughtful present this Valentine’s Day, we’ve rounded up a score of great gift scores.

Razer Blade Stealth Review (2019): Better Graphics and 2019-02-08 09:00:00One of our favorite laptops for portable playtime now offers improved graphics performance and battery life.

Zavor Lux 6-Quart Multicooker Review: A Nudge Better 2019-02-07 08:00:00You may not recognize the name, but you'll be instantly impressed with this multicooker's capabilities.

Moto G7, G7 Plus, G7 Play, and G7 2019-02-07 08:00:00Bigger power cells and more-efficient components are helping smartphone manufacturers give consumers what they really want: phones that don't require

Facebook Was Late to Mobile. Now, Mobile Is 2019-02-06 07:00:00With messaging apps and Stories, Facebook’s emphasis on mobile features also highlights some of the company’s greatest vulnerabilities as

Facebook Messenger Lets You Unsend Now. Why Doesn't 2019-02-05 19:15:20Very few chat apps offer the unsend feature. As it turns out, that’s for a few very good, or at least understandable, reasons.

How to Make Your Home Energy-Efficient in 4 2019-02-05 08:00:00Smart thermostats, light bulbs, and leak sensors are just a few of the many ways to cut down your electric bill and raise the energy efficiency of you

Dog DNA Test Reviews: Wisdom Panel, DNA My 2019-02-05 07:00:00Two dog owners review three dog DNA tests. The results offered some surprises, some welcome relief… and some fart research.

How to Live Stream the State of the 2019-02-05 06:00:00President Donald Trump will deliver his second State of the Union address Tuesday night. Here's how to watch.

Tokimeki Unfollow: A KonMari Tool for Decluttering Twitter 2019-02-04 18:48:23Designer Julius Tarng has created a web tool for unfollowing Twitter users that employs Marie Kondo's "KonMari" decision-making method.

Android Apps for the Deaf: Live Transcribe and 2019-02-04 09:00:00Two new assistive apps coming to Android provide audio boosting and near-real-time text-to-speech translation to the deaf and hard of hearing.

Ars Technica » Gear

For Valentine’s Day, Ars writers describe the tech 2019-02-12 09:35:29A few Arsians get personal for V-Day and serenade the gear that brings them joy.

Amazon acquires Eero, maker of mesh Wi-Fi routers 2019-02-12 07:22:18Eero's routers could help Amazon connect its various Echo and Alexa devices.

Microsoft teases next-gen HoloLens ahead of February 24 2019-02-11 19:03:26Unveiling will take place at Mobile World Congress.

Augmented Reality Google Maps is coming, starts testing 2019-02-11 13:00:22Forget GPS and a compass, this uses more accurate camera-based positioning.

Bay Area: Join us 2/13 to discuss a 2019-02-11 07:16:57Leigh Honeywell will talk about tech workers challenging companies to be more ethical.

Apple’s internal hardware team is working on modems 2019-02-08 15:25:18Move would end dependence on Intel after the Qualcomm fallout.

Microsoft: Yeah, we make Office 2019 and Internet 2019-02-08 12:00:48A curious week in which Microsoft disses its own products.

Google wants a VP of Wearables, might finally 2019-02-08 11:45:15Google job listing hopes someone—anyone—will save Wear OS.

Apple to developers: disclose screen recording or get 2019-02-08 10:14:56Developers must tell users about the feature or remove it completely.

Messy office owners, rejoice: Skype now blurs the 2019-02-07 13:18:19No need to frantically tidy things up before making a call.

Motorola’s 2019 cheap smartphone lineup includes a 5000mAh 2019-02-07 08:00:06Motorola shows off the Moto G7, G7 Power, and G7 Play.

Disney+ will be a true Netflix competitor, with 2019-02-07 06:30:33Every Disney brand is making shows, but the service won't just have Disney stuff.

TechCrunch » Gadgets

The Opportunity Mars rover’s greatest shots and discoveries 2019-02-13 19:53:13Opportunity’s mission is complete, and the rover that was supposed to last 90 days closes the book on 15 years of exploration. It’s sad, b

Nintendo makes the old new again with Mario, 2019-02-13 18:16:15The afternoon brought an eventful series of announcements from Nintendo in one of its Direct video promos, and 2019 is looking to be a banner year for

Nintendo announces Super Mario Maker 2 for Switch, 2019-02-13 17:15:17Nintendo has ruined my life, and all our lives, by announcing Super Mario Maker 2, the sequel to the level-constructing game on Wii U that produced th

Opportunity Mars rover goes to its last rest 2019-02-13 14:17:38Opportunity, one of two rovers sent to Mars in 2004, is officially offline for good, NASA and JPL officials announced today at a special press confere

Xnor’s saltine-sized, solar-powered AI hardware redefines the edge 2019-02-13 12:27:48"If AI is so easy, why isn't there any in this room?" asks Ali Farhadi, founder and CEO of Xnor, gesturing around the conference room overlooking L

Audio tech supplier to Rolls Royce and Xiaomi 2019-02-13 11:38:30As autonomous driving eventually transforms cars from transportation devices to mobile theaters or conference rooms we will need better audio inside t

DJI is updating its geofencing system across Europe 2019-02-13 07:25:12Following the pre-Christmas drone debacle in the U.K. — which plunged thousands of people into travel misery after repeated drone sightings 

DARPA wants smart bandages for wounded warriors 2019-02-12 14:06:00Nowhere is prompt and effective medical treatment more important than on the battlefield, where injuries are severe and conditions dangerous. DARPA th

Devialet’s Phantom Reactor turns music into an emotional 2019-02-12 13:16:36French startup Devialet has done it again. The new Phantom Reactor is a smaller, more effective speaker that packs in everything that made Devialet sp

Dandelion Energy, the Alphabet X spin out, raises 2019-02-12 10:19:14As tech companies continue their race to control the smart home, a promising energy startup has raised a round of funding from traditionally tech and

Amazon looked to the past to build the 2019-02-11 22:00:20Over the last 20 years, smart home gadgets have evolved from fantasy to commodity. Walk into Best Buy and there are dozens of products that take just

Another fine mesh 2019-02-11 19:56:57Amazon’s acquisition of mesh router company Eero is a smart play that adds a number of cards to its hand in the rapidly evolving smart home mark

Geeky Gadgets

Save 59% on the Rocket Language Learning: Level 2019-02-14 11:01:20We have an awesome deal for our readers on the Rocket Language Learning: Level 1 in the Geeky Gadgets Deals store today, you can save 59% off the norm

Crackdown 3 performance analysis before tomorrows launch 2019-02-14 09:36:02Crackdown 3 officially launches tomorrow and has been built using the Unreal Engine 4 by developers Sumo Digital. If you are interested in learning mo

Unreal Engine 4 receives Ray Tracing support 2019-02-14 09:23:46Epic has this week announced that the latest preview version of Unreal Engine 4 now includes both low-level and high-level support for ray tracing. En

Micro Arcade handhelds launching later this year from 2019-02-14 09:14:40  After a successful Kickstarter campaign to create the Arduboy, its developer then created the credit card sized game system called the Tetris M

Redmi Note 7 headed to India later this 2019-02-14 09:01:47The Redmi Note 7 will apparently be coming to India later this month the handset will launch in India on the 28th of February. The handset was announc

OGarden fully automated indoor smart garden 2019-02-14 08:58:25Designer Pierre Nibart based in Québec, Canada has created a new smart garden aptly named the OGarden due to its shape and design. Developed to

Final Fantasy IX Remastered Edition lands on Switch, 2019-02-14 08:44:21After previously being released on the PlayStation 4 the Final Fantasy IX Remastered Edition has now been launched on the Xbox One and Nintendo Switch

Tahoe and Suburban SVE Pack 1,000 Horsepower 2019-02-14 08:38:37Just because you need an SUV to pick up the kids or haul lots of stuff, it doesn’t mean you have to drive a slow car. At least not thanks to the

PlayStation Watch now available to preorder from $33 2019-02-14 08:33:06PlayStation gamers may be interested in a remake of the novelty watch from 1995. The 2019 version is now available to preorder and is priced at $33 or

Fujifilm X-T30 camera offers a smaller, more affordable 2019-02-14 08:27:42Fujifilm has introduced a new more affordable and smaller version of its X-T3 camera in the form of the Fujifilm X-T30 which will be available to purc

Samsung Galaxy M20 coming to Europe 2019-02-14 08:18:25The Samsung Galaxy M20 was made official in January, the handset recently launched in India and now it looks like it is also coming to Europe. Some fi

GIO-1 designed to transform the development process 2019-02-14 08:13:57A new piece of hardware has been created to change the way development is carried out, taking the form of the GIO-1. For new hardware created by L3 Sc

NDTV Gadgets - Latest

Acoosta Uno Bluetooth Speaker With Built-in Music and 2019-02-15 10:17:53Available online at just under Rs. 9,000, the Acoosta Uno not only lets you connect various source devices, but also features over 14,000 built-in aud

Realme 2 Pro Price in India Slashed, Now 2019-02-15 08:25:06Realme 2 Pro price in India now starts at Rs. 12,990 for its 4GB RAM/ 64GB storage variant.

Data Localisation, E-Commerce Not Discussed at US-India Summit: 2019-02-15 08:23:27Data localisation and e-commerce legislation were not expressly discussed during talks between the United States and India, US Ambassador Kenneth Just

Mi 9 to Be Powered by Qualcomm Snapdragon 2019-02-15 08:09:27Xiaomi is all set to unveil the Mi 9 at a press event on February 20 in Beijing, China.

Over 150 Mobile Manufacturing Units Set Up in 2019-02-15 08:04:22India witnessed the setting up of over 150 mobile handset manufacturing units in the past four years, according to a new report from CyberMedia Resear

Vodafone, Idea Now Offer iPhone Forever Plan at 2019-02-15 07:51:37The iPhone Forever programme can also be availed by Idea Cellular users on Nirvana Rs. 649 plan.

Moto G6, Moto G6 Play, Moto Z3 Play 2019-02-15 07:51:23Android Pie brings with it goodies like redesigned notifications, Adaptive Battery, new UI, improved screenshot controls and audio controls, and overa

AI Can Help Improve Understanding of Earth Science: 2019-02-15 07:48:55AI can be applied to data related to extreme events such as fire spreads or hurricanes, which are very complex processes influenced by local condition

Sony Xperia L3 Price, Specifications, Renders Leaked Ahead 2019-02-15 07:46:36The Sony Xperia L3 is seen to sport a dual rear camera setup, a side-mouted fingerprint sensor and considerable chin on top and bottom portions of the

Telecoms Industry Calls for Europe-Wide Network Testing Regime 2019-02-15 07:44:56The initiative by the GSMA comes as the United States steps up pressure on its allies to ban China's Huawei on national security grounds.

Amazon Is Wavering on Its Commitment to Renewable 2019-02-15 07:35:42Amazon criticised the report as inaccurate and said its commitment to clean energy has been unwavering.

Samsung Galaxy Note 9 Reportedly Getting February 2019 2019-02-15 07:29:07A report suggests that Samsung is rolling out a new update for the Galaxy Note 9, which includes the February security patch.


Disclaimer and Notice:WorldProNews.com is not responsible of these news or any information published on this website.