Pi Charger Uses Qi Standard to Extend Wireless Charging Reach Beyond Current Mats

Discussion in 'MacRumors.com News Discussion' started by MacRumors, Sep 19, 2017.

  1. MacRumors macrumors bot


    Apr 12, 2001

    With the launch of the iPhone 8 and iPhone X, Apple added inductive wireless charging support to its mobile devices for the first time. While the feature brought Apple's phones up to speed with existing Qi-compatible charging standards, the announcement fell short of some expectations that this year Apple would introduce technology allowing iPhones to be powered wirelessly at a distance, rather than having to use a charging mat.

    However, Pi is a California-based startup that aims to break from that limitation with the Pi Charger - a cone-shaped tabletop device that combines Qi-based resonant induction with a special beam-forming algorithm that allows it to charge multiple devices within about a foot in any direction.


    The Pi might not reach the distances claimed by Energous' WattUp technology, which uses radio frequencies to charge devices from up to 15 feet away, but it does offer more flexibility than existing pads that devices must be directly placed upon.

    In a demo at TechCrunch's Disrupt event, the company showed that up to four Qi-compatible devices can be placed within a foot of a Pi and they will start charging. Devices can be located anywhere within a 12-inch sphere of influence around the charging hub and in different orientations. The closer the device to the Pi, the faster it charges, with a gradual drop-off in charging speed the further away the phone is.
    The team behind Pi said they've yet to settle on an exact price for the charger, but they expect it to ship for under $200 sometime in 2018. As for Apple, there is plenty of anecdotal evidence to suggest it has partnered with Energous to work on bringing a truly wire-free, over-the-air charging technology to its consumer devices, but we'll likely have to wait for at least another year to see the possible fruits of those labors.

    Article Link: Pi Charger Uses Qi Standard to Extend Wireless Charging Reach Beyond Current Mats
  2. PortableLover macrumors 6502a

    Apr 14, 2012
  3. borgqueenx macrumors 65816

    Jul 16, 2010
    And suited for current iphone 8's and x's! This is awesome tech and hope to see this become a reality!
  4. dannys1, Sep 19, 2017
    Last edited by a moderator: Sep 19, 2017

    dannys1 macrumors 68020


    Sep 19, 2007
    Now that is very nice!

    I really wish you could buy the raw induction coils with a USB connector so you could make your own in furniture stuff a bit better.

    I'm not interested in the charging mat thing at all - but if I can hide induction charges in multiple furniture places and in places in the car, that makes it much more useful.

    I don't want to have to buy 5 pad charges to take it apart to cover the entire arm of my sofa though!
  5. lellis2k macrumors 6502


    Oct 2, 2007
    Sheffield, UK
    Just have it in the main place on your sofa where your phone would be and indicate it with a tiny stitch in a slightly different colour or something
  6. ILuvEggplant Suspended


    Jul 28, 2016
    Los Angeles, CA
    One wonders if this will effect sperm count.

    Are there any studies on this BruckU?
  7. trifid macrumors 68000


    May 10, 2011
    Not a single mention of health risks... that's reassuring.
  8. trife macrumors 6502


    Apr 16, 2012
    So we can expect an iPhone to have this ability no sooner than 2022, right?
  9. BMcCoy macrumors 68000


    Jun 24, 2010
    This is the sort of thing I was expecting Apple to be releasing at some point...

    Hopefully the partnership with Energous will yield something even more impressive, and not too far in the future..
  10. roeiz macrumors 65816


    Sep 13, 2010
    12 inches you say? for the tip of the devices to get charged? sounds a too small range.
  11. TrueBlou macrumors 68040


    Sep 16, 2014

    I should hope not, though I don’t recall having seen any studies.
    As usual it’s left to the end users to find this information.

    Hold on, 1....2....3...4....5...6...7...8 damn, I think I counted that one twice, :rolleyes: 1...2...3...4...5...
  12. deany macrumors 68030


    Sep 16, 2012
    North Wales
    "I'm not quite feeling myself at the moment, not entirely sure why!"
  13. Avieshek Suspended


    Dec 7, 2013
    No wonder sperm count is increasingly decreasing in the west due to increased technological relations.
  14. iPhysicist macrumors 65816


    Nov 9, 2009
    "Can even keep your coffee warm" (heating temperature depends on proximity to cone)
  15. Bones13 macrumors member


    Oct 7, 2008
    I am still concerned with these magnetic fields adversely affecting all the magnetic strips that live in my wallet. I also want to know if these fields will kill NFC containing door entry cards. I have one for door entry in my phone case, and another (different door) in my wallet.

    I am assuming that a non-ferrous phone case won't impair the wireless charging function.

    I have been hoping for wireless charging since the early versions came out. My iPhone6 lightning port might last long enough for me to obtain the iPhone X.
  16. Naaaaak macrumors 6502

    Mar 26, 2010
    We'll find out it somehow causes cancer in 20 years.

    After congressional testimony from expert witnesses saying it doesn't.

    After countless articles assuring us it's "safe".

    Only admitted once a bunch of people are affected.
  17. JaySoul macrumors 68030


    Jan 30, 2008
    1) There really seems like other problems in the world vastly more important than this

    2) Cancer cancer cancer cancer cancer
  18. iZac macrumors 68000


    Apr 28, 2003
    Great marketing timing that this is announced right after the iPhone gets wireless charging.
  19. Bacillus Suspended


    Jun 25, 2009
    But those surviving are naturally radiation-resistant and are cycling out at 170 degrees F to fulfill their pretentious ambitions...
  20. Shirasaki macrumors G3


    May 16, 2015
    I would love to use this technology.
    Sperm count? C’mon....
  21. [AUT] Thomas macrumors 6502

    Mar 13, 2016
    Graz [Austria]
    Let's hope EMC tests are done properly... I doubt it's gonna pass unless it can really focus the beam with a high efficiency. Otherwise you're just going have a huge electromagnetic field around that thing. If it can power a few devices "power at destination" will need to be at least 15W. With the bad efficiency these things usually have, emitted power is likely double or tripple that... In comparison: a WiFi AP is limited to 1W. A safety distance to antennas of 10-20cm is recommended.
  22. jaack macrumors member

    Oct 30, 2016
    I saw this last night and managed to get a $50 discount code for when it launches. Nice to see the iPhone 8 and iPhone X are both supported.
  23. Marx55 macrumors 68000

    Jan 1, 2005
    Stop making wireless things as much as possible. Instead, make wired things, and save battery and energy: keyboards, wireless charging, etc.
  24. magpie maniac macrumors 6502

    magpie maniac

    Aug 24, 2007

    One 2-hour charge is equal to a 12-ounce serving of Nuka-Cola Quantum, but the rads are totally worth the convenience.
  25. Apple blogger macrumors 6502a

    Feb 28, 2013
    Can't wait for the next news "Apple buys company Pi, which designed the Pi Chargers, hinting at their own rumoured wireless charging standards"

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