5 things you didn’t know about wireless charging

Published by Joel Willans on January 9, 2013

Nokia Lumia 820 on the wireless charging plate

 Twenty years ago the mere thought of wireless telephones was enough to make us raise our eyebrows; now, we can even ditch the cables we use to charge them. And because the highest failure rate in mobile equipment tends to be the fraying and kinked power cord, this is very good news.

While it’s not yet mainstream, you probably already know that smartphones like the Nokia Lumia 820 and the Nokia Lumia 920 are the wireless charging trailblazers. However, there’s plenty more to learn about this futuristic tech. 

One. Wireless charging works by using induction – the same basic principle that Michael Faraday discovered way back in 1831. An electrical current in one part of the charger creates a magnetic field, which in turn creates a voltage – and that voltage powers your phone, wire-free! You simply place your phone on top of the charging unit, just like, with an induction cooker, you place your pan on the hob. Simple!

michael-faraday

Two. Like any other emergent tech, there are competing systems. Nokia has adopted the Qi standard, developed by the Wireless Power Consortium, a cooperation of worldwide companies that aims to create a proprietary standard for wireless charging technology that will eventually operate worldwide. ‘Qi’ comes from the Chinese concept of energy flow in traditional medicine – pretty appropriate, we think!

logoqi_t

Three. You won’t always have to bring your charging pad with you. Nokia, for instance, has teamed up with Virgin Atlantic and Coffee Bean And Tea Leaf, which means that when you’re the London Heathrow Clubhouse lounge, or in a Coffee Bean café, you’ll be able to make use of their table-top charging stations while you relax. Now that’s twenty-first century customer service if ever we saw it.

Virgin Atlantic Club lounge

Four. While many manufacturers are getting in on the act, Nokia aims to be the best of the bunch, which is why it increased the active charging area to over 80 per cent on the wireless charging plate. 

wirelesscharging-body-01-jpg

Five. Last but by no means least, there’s already a ton of wireless charging accessories available. The Nokia Wireless Charging Pillow by Fatboy is for when your hard-working phone fancies a well-deserved lie-down – and the Nokia Wireless Charging Stand, is ideal for when you want to charge up whilst on video calls. We’re also very fond of the JBL PowerUp Wireless Charging Speaker for Nokia, which will charge your phone as you’re listening to your favourite tunes.

As you’ve probably guessed we’re massive fans of the wireless way, but what do you think? Does it herald the start of a brave new wire-free world or is it just an electric flash in the pan?

Comments

  • http://www.facebook.com/profile.php?id=1267660468 Davlet Mametov

    interesting, would it be possible to increase distance from charger without harm to health

    • MasterMuffin

      It would be hard for the phone and the charger to find each other and it would waste some energy, I hope there will be time when all you have to do is click something and your device will start powering it’s battery as long as you’re in your house :)

      • Dexter

        “It would be hard for the phone and the charger to find each other and it would waste some energy”— Utter non-sense. There is no known way to transmit considerable electrical power (say more than 15 watts) through air for considerable distance (say more than 2 cms.). phone and charger finding each other!!!!!!!!!!!! Duh!!!!!

        • MasterMuffin

          There are more standards than Qi (Nokia uses Qi) and they can transmit electrical power longer distances than Qi. And what I ment with the “finding” ia that it would have to use power to find out if a phone is in range (like bluetooth or something)

  • http://twitter.com/2domivan 2domivan

    Interesting !

  • K. Doug Allen

    I believe it will become as popular one day as subscription wifi.

  • http://twitter.com/SuiEmpireAvenue Sui

    Great idea + sustainability driven solution!

  • Harold Gardner

    Please make it so with every electronic device and make it soon!

  • http://twitter.com/berkesch Tim Berkesch

    I thought there was technology being developed to charge our devices while just being in the same room as the power source???

    • John O’Connor

      research is underway and a few prototypes have been experimented with

    • curtieson

      The problem is getting people to bite into that without the fear of harming themselves. That, and when you get 20 devices into a room, how does the controller know what to give to each of them. Without a doubt, currently, the technology exists in that you could stand in the middle of a room and charge your phone.

  • http://twitter.com/DuaneTilden Duane Tilden

    Interesting technology, I can see this catching on… are there industry standards?

    • MasterMuffin

      Did you read this? Qi standard dude…

  • Claus Ottesen

    Thanks for sharing, great stuff

  • http://www.image-minded.com/ Neil Silverthorn

    your article is right, I didn’t know much about these 5 wireless charging facts. I like the wireless charging bar idea and the fact that wireless charging saves a lot of wasted energy use.

  • drewsuruncle

    I love my wireless charging on my 810. It really is a nice convenience not having to mess with cords and trying to line it up and plug it in.

  • http://xeeme.com/mithuhassan Mithu Hassan

    Very interesting and cool !! Thanks to share !!

  • alex alaskap

    in 6 months time this will be the norm. anybody see the new 1 terabyte flash drive? but i digress, in a year’s time battery life for cellphones will undoubtedly double and so will the size. view screens will approach 4.25×5.75 dimensions, practically an ipad. lol x10

    • MasterMuffin

      Yep, Nexus 4 and SGS3 have already got this and probably other android manufacturers will adopt this and soon apple will be the last not having it (always a slow adopter…) and we’ll all be happy :)

      • Dexter

        It’s not really ‘wireless charging’. It’s a fad and fad is all it is. And apple has been leading the market in technology. Slow adopter???????? Duh!!!!!

        • MasterMuffin

          ^Troll… And Apple is really a slow adapter when it comes to new technology. LTE and NFC for example or the bigger screens, the old 3,5″ was really laughable amd the current 4″ is almost just as bad…

        • Deric

          iTroll…

  • http://www.facebook.com/daniel.pirlando Daniel Pirlando

    Will be the next trend

  • http://www.facebook.com/MarkAReynolds Mark Reynolds

    Definitely the way of the future ! No moving parts have always led to decreasing production costs. If standards are agreed upon, I can see many service centres and cafes providing this feature built into the tables.

  • http://twitter.com/Articles_4u Alexander BK

    This was an amazing story, thanks NOKIA.

  • http://www.facebook.com/profile.php?id=663918885 Jeff Langfels

    Wires are the bane of my existence

  • http://www.facebook.com/debonair1958 Deb Monique Henry

    I’ve heard that you shouldn’t leave your phone sitting on the charger all the time. I have one by my desk and one on my nightstand. Am I degrading the battery life by using them throughout a 24hr period?

    • Alex Vazquez

      It’s good to let your battery drain completely and let it fully charge uninterrupted every once and a while to maintain healthy battery life. But if you have constant access to a charger anyway I don’t see that it would be a problem for you.

      • http://twitter.com/Tams80 Tams80

        Actually, with Li-on batteries it’s never a good idea to let them fully discharge.

        • Neo

          That’s true, and I am kind of amazed that Alex can write what he does without actual knowledge about this.

  • A. Deshmukh

    Nothing new, some 7 years back I saw electric automatic tooth brush, which also wireless charging. As I am electronic hobbyest and electronic engg. I immediatly said it is nothing but induction funda.

    • curtieson

      And of course you read the article that also stated it was nothing new…that it was actually a concept discovered in 1831, haha.

  • http://www.facebook.com/michaeleekk Michael Lee

    I’m not so sure about point five, whether wireless charging is greener.
    When using induction related stuff, the energy loss to the surrounding should be much more than you plug in a power cord…
    And when the phone is fully charged, I assume it will stop charging the battery and will simply use the power from the power cord or wireless charger?
    Correct me if I’m wrong…

    • Deric

      If I understand it correctly, its “greener” since it doesn’t use trickle power like a normal charger in a wall socket when not in use. The wireless charger only powers up when it connects to the phone. Will try find the Nokia article I read this in and post the link.

  • http://www.facebook.com/damek.bornholm Damian Daniel Jørgensen

    isen’t there some energy getting lost in the converting..?

  • http://www.facebook.com/robert.phillips.104418 Robert Phillips

    point 5…that was not something I was aware of, that contact is required to turn the charger on….I would have assumed it was always on. Efficeiency is?

  • malerocks

    I didnt know point 5. Really impressed

  • http://www.facebook.com/people/Unni-Krishnan/100000397991930 Unni Krishnan

    will it consume more energy than conventional charging?

  • Mihkel Laansoo

    Creating induction without core?
    Low efficiency.
    Once nanoteh reaches single molecule layer carbon and Cn sheets we could make battery size of our ordinary
    But 200x more capacity…

  • susmita dutta

    i have nokia lumia 710….can i have this facility?????how much its cost?

    • Neo

      No you can’t. You need 820 or 920.

  • http://www.facebook.com/lourenco.medeiros1 Lourenço Medeiros

    I see the point when you say it’s more efficient comparing whit a charger always on. But what I would like to known is, comparing the actual charge period what is the amount of energy wasted whit wireless charging? 40%? 60%?

  • http://www.facebook.com/NitroNeo89 Jayesh Ko

    Lol people don’t turn off their wall socket button after charging , what is the world coming to , more money the less people care for common sense >_>

  • Chris

    Six: It’s almost impossible to get one of the Nokia charging plates in any color other than black. Still waiting for mine and I got my phone on day one.

    • Deric

      I have seen red and yellow charges available, as well as black which I have

  • donfre

    nICE ONE

  • verdilaurent

    Nice. Looking forward to use this amazing technology ;-)

  • http://www.facebook.com/tomlaing Tom Laing

    Great ideas – but why did it take so long given Faraday’s discovery in 1831

    • http://www.facebook.com/lauri.kylmanen Lauri Kylmänen

      The induction has been used for a long time. for example in different electronic devices like electric tooth brushes etc. there has even been those plate kinda things that you put on your table and if you put something like a phone on it, it will charge the phone. I think they have made that plate a lot more efficient especially for the Nokia phones now.

  • http://www.facebook.com/chris.petersen.3517 Chris Petersen

    The best thing about this is that it works completely. Mine’s charging now, using the wireless charging pad

  • http://twitter.com/Mahmoudkoja Mahmoud

    amazing, ..

  • http://www.facebook.com/hitechkj Engr Kanwarjit Singh

    In nokia lumia 820 add some applications

    in editing of contacts no custom menu is there for editing phone nos in one contact , in one contact have 6 nos one is for mother how i will write mother in particular no.

    if i have to call no which is in massage and before dialing i want to add 0 ,i cant if i dont want to save that contact

    in whatsup we can not attach music file from gallery even not save videos

    in delhi india your people dont hear suggestions

    kanwarjit india 9891090790

    • Neo

      I don’t understand a word of what you’re saying..

  • Peter Olowoniyi

    Good job guys, but does this technology really deserve the name “Wireless Charging”? Since the charging pad is still “wirefully” connected to the source and your phone MUST be in contact with, in fact, on top of the pad. Anyway, this saves you some 10 to 15 seconds of plugging your phone each time you want to charge. So once again I say Good job great people.

    • ikool

      Very good point

  • http://www.facebook.com/ayush135 Ayush Sharma

    I think these wireless chargers would be more successful if they had an internal battery of some sort, like a powerful battery which could completely charge the phone 3-4 times on a single charge, they would be then truly wireless in every sense. You plug in the battery pack while you are asleep or at work and then you can unplug it and use it to charge your phone wherever you want.

  • http://www.goteched.blogspot.in/ Abhijit

    i have no questions over your customer service Nokia.I rely on you

  • meadowswv

    Now slap a solar panel to it.

  • Mujwahuzi

    That is the power of science!

  • http://www.facebook.com/babar.ali.549436 Babar Ali

    THIS CHARGER IS A PERMANENT MAGNET TYPE OR IT HAS TO BE CHARGED…..?