Will 12W charger charge iPhone 6 Plus any faster?

Discussion in 'iPhone' started by culverh0use, Sep 16, 2014.

  1. culverh0use macrumors newbie

    Joined:
    Sep 16, 2014
    #1
    Was thinking about ordering a 12W charger for my iPhone 6 Plus since it will have a bigger battery and likely take longer to charger. I know the bottleneck is usually in the phone at 5W but was wondering if anyone thinks Apple will increase this for the Plus.
     
  2. culverh0use thread starter macrumors newbie

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    Sep 16, 2014
  3. Menel macrumors 603

    Menel

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    ATL
    #5
    that it allows iPhones 5/5S charge faster.
    So it will undoubtedly make the new ones charge faster.
     
  4. 3DTV macrumors newbie

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    Oct 30, 2010
    #6
    So will the new iphone have the same watt charger as my iPad Air??
    I know the 5s didn't ....
     
  5. culverh0use thread starter macrumors newbie

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    Sep 16, 2014
    #7
    From what I've been able to find the 12W charger didn't enable any previous iPhones to charge any faster, as they only drew 5W from any charger. So I was wondering if this had changed with the Plus and its larger battery.
     
  6. Ergates-thi-Ant macrumors 6502

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    Sep 9, 2013
    #8
    I thought charging was limited by the device, so it's unlikely that using an iPad charger with a 5S, for example, would give any improvement over using a 5W phone charger.

    ----------

    Yes, I'm interested too. I guess we'll find out in a while!
     
  7. chiawen.yang macrumors member

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    Feb 19, 2012
    Location:
    Austin, Texas
    #9
    12w is greater than 5 watts... Filling a bucket twice as fast. Power = volts x current

    Besides, many people out there have and notice it themselves and see real world charging speed.

    Unless Apple put a power regulator in the iPhone to cap it at 5 watts (more space/hardware). If you blow up the device by providing too much power = your fault since the manual said a recommended apple charger. Catch 22, but a 12watt apple charger is apple certified.:)
     
  8. iamMacPerson macrumors 68030

    iamMacPerson

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    #10
    I feel like the 10w iPad brick I have does charge my 5s faster then the included 5w brick. I think the iPhone can actually charge at a higher rate then 5w just fine, it's just Apple didn't include a better brick.
     
  9. culverh0use thread starter macrumors newbie

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    Sep 16, 2014
    #11
    If it will actually charger faster, which in most places I've read that it won't with previous iPhones, I'd gladly pay $19 for the 12W adapter.
     
  10. Ergates-thi-Ant macrumors 6502

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    Sep 9, 2013
    #12
    Modern smart charging doesn't work like that. The device being charged sets the current. Hence no difference between 12W and 5W charger for 5s charging, for example.
     
  11. nox5 macrumors 6502

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    Oct 16, 2013
    #13
    W = V x I
    W = I2 x R
    W = V2 / R

    I = W / V
    I = (W / R)2

    V = (W x R)2
    V = W / I

    R = V2 / W
    R = W / I2
     
  12. iamMacPerson macrumors 68030

    iamMacPerson

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    #14
    Well all my iPhones since the 4 have charged faster on a 10w brick versus the included 5w. I'm not the only one who has noticed this either. All my family members with iPhones use 10w bricks and they all tell me it's much faster then the 5w.
     
  13. bpeeps macrumors 68020

    bpeeps

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    May 6, 2011
    #15
    They are not basing it on anything concrete, besides maybe a perceived notion of it charging faster. I've read the exact same things you are posting in this thread. And I too am wondering if the iPhone 6 will be capped at 5W internally.
     
  14. rockitdog macrumors 68020

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    Mar 25, 2013
    #16
    My question is does using a 10 or 12w brick cause any harm to your iPhone?
     
  15. AutoUnion39 macrumors 601

    AutoUnion39

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    Jun 21, 2010
  16. Ergates-thi-Ant macrumors 6502

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    Sep 9, 2013
    #19
    I suspect that you haven't actually tested this. The evidence is that there is no difference, and that your perception is flawed. Sorry.

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    Nope. It'll charge your phone exactly the same as the 5W adapter. :)
     
  17. powerstrokin macrumors 6502a

    powerstrokin

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    May 18, 2013
    #20
    Absolutely not. You could have a power brick that was capable of a million watts at five volts and the phone would still only draw five watts. Zero problems whatsoever.
     
  18. culverh0use thread starter macrumors newbie

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    Sep 16, 2014
    #21
    Thank you.

     
  19. yanki01 macrumors 68040

    yanki01

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    #22
  20. Ergates-thi-Ant macrumors 6502

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    #23
    FWIW I used to think this too, then I went and read up. Once I timed it, and there's no difference. There must be something about the idea of that fat 12W brick making us think of course it'll charge faster. What's the word for this, confirmation bias?
     
  21. yanki01 macrumors 68040

    yanki01

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    Texas
    #24
    also, my 10w brick charges my iPhone 5 faster than my 5w brick at home.
     
  22. rui no onna macrumors 601

    rui no onna

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    Oct 25, 2013
    #25
    Placebo effect.
     

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