Fast charging

Discussion in 'iPhone' started by kat.hayes, Sep 12, 2017.

  1. BeatCrazy macrumors 65816

    Joined:
    Jul 20, 2011
    #151
    And your 7 Plus would have charged in that exact same amount of time, if you had used the 10w iPad charger.

    People with 8's will go even faster, from 0-50%, when using the 29w charger.
     
  2. RxMac macrumors 6502

    Joined:
    Sep 11, 2008
    #152
    Why does it have to be Apple USB-C to lightning? Why can't we use other cords? Apple cords stink and aren't durable and are way too pricey!
     
  3. deleder2k macrumors newbie

    deleder2k

    Joined:
    Apr 14, 2016
    #153

    Tried 61W charger with USB-C to lightning cable on my iPhone 7. Not sure if it drains more than 12 (10?) watts.

    47% in 30 minutes.


    Apple promised iPhone 8 fast charge 50% in 30 minutes. I had Wi-Fi enabled. Poor reception.


    Would an iPhone 8 charge faster at all? This fast charge thing by Apple seems like a major scam. Or perhaps there is a speed increase with the plus? If there is a difference with the regular iPhone 8 compared to 7 we're talking about 3-4 minutes. Bah
     
  4. Susurs, Sep 26, 2017
    Last edited: Sep 26, 2017

    Susurs macrumors 6502

    Susurs

    Joined:
    Jun 18, 2010
    #154
    If you read the posts abowe - you could see that I compared it an used the iPad standart charger, and it took around 35 minutes longer from 0-100%
    --- Post Merged, Sep 26, 2017 ---
    Next, Apple could release an update slowing down iPhone 7 charging speeds - so that the 8 looks better/‘fast’ :D
     
  5. chucksz macrumors newbie

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    Sep 26, 2017
    #155
  6. Susurs macrumors 6502

    Susurs

    Joined:
    Jun 18, 2010
    #156
    Seems that 7 does benefit from 29w charger as well. But I don’t see it as the the benefit from the PD, different voltages due to the fact that 8’s and 7’s are able to charge up to 50% similarly fast.
     
  7. BeatCrazy macrumors 65816

    Joined:
    Jul 20, 2011
    #157
    So many errors in that article... I caution you against drawing any conclusions from it.

    To be clear, in "Apple speak", Fast charging means an iPhone or iPad that can draw power at greater than 10/12 watts, which will of course reduce power time when charging from 0-50% battery.

    Since no Apple devices allow a draw of greater than 10/12 watts via USB-A cable, by nature, "Fast charge" must be delivered via USB-C cable/brick, and must have the associated USB-C PD chip inside the receiving device (which the 7/7 Plus does not have).

    In the article linked above, the author erroneously reports that the "Apple 29W USB-C adapter, which can do 14.5V @ 3A", which should be 2A. He goes on to repeat this error several times, wondering why he never sees 3A draw. Because the neither the phone supports 3A, nor does the charger! He also never measures the wattage draw a <50% charge, only relates his charging time. I imagine if he were to measure, he'd see something >11.6 watts on the 8/8 Plus. Something that would be impossible with a 7/7 Plus.
     
  8. Zigourney, Sep 27, 2017
    Last edited: Sep 28, 2017

    Zigourney macrumors member

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    Sep 27, 2017
    Location:
    United Kingdom
    #158
    My iphone 5s charges to about roughly 50% in about 35 mins in Airplane mode using an Anker 24w USB charger (5V 2.4amps per socket. See link below). The same is true for my wifes Iphone 6s. We share the same double plug Anker charger.

    I'm using genuine apple usb-a lightning cables and Ankers usb-a Lightning II cables and both "fast charge" our older iphone 5s and iphone 6.

    Historically I've been using an Apple ipad charger, its an old ipad model - cant remember the specs of the charger before I got the Anker, and it charged our phones just as fast. This "fast charge" feature using a higher amperage charger is nothing new on iphones, its always been there since the iphone 5s.

    I'm waiting to pre-order the Iphone X and having read this thread and done a bit of research on the net regarding the fast charge feature on the new iphone 8/8+/X, I can tell you I wont be spending any extra cash on new USB-C cables/chargers, as I am 99% sure the iphone X will "fast charge" to roughly 50% in 30mins using the Anker (5V 2.4amp) USB-A charger.

    https://www.amazon.co.uk/Anker-Char...6517417&sr=8-2&keywords=Anker+USB+Charger+24W

    I will confirm back here once I've got the X of course, if I get lucky on pre-order day...fingers crossed!
     
  9. vdawgs22 macrumors member

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    Sep 18, 2012
    #159
  10. Susurs, Sep 27, 2017
    Last edited: Sep 27, 2017

    Susurs macrumors 6502

    Susurs

    Joined:
    Jun 18, 2010
    #160
    Well, I agree that devices may use different tech, of course. But the my main point is that the charging time for 7 is simillarly fast to 8, or even faster judging by this forum. Apple claims 50% in 30 mins in theory. My 7 Plus does 50% in 35 minutes. Some field tests here report even quite longer total charging time for 8 than on 7....
     
  11. samo350 macrumors member

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    Oct 20, 2012
    Location:
    Montpellier, FR
    #161
  12. Arni99 macrumors regular

    Joined:
    Feb 26, 2011
    Location:
    Vienna, AUSTRIA
    #162
    As posted in another thread:
    I just tried it with the 29w charger + usb-c lightning cable. Both from Apple.
    30/60/90min => 53/81/94%

    After 2h6min 100%

    Am running 11.0.1 on my 8+
     
  13. borntrouble macrumors regular

    borntrouble

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    Jun 4, 2010
    Location:
    Germany - Bavaria
    #163
    Do you have any information on fast-charging times for the regular iPhone 8?
     
  14. samo350 macrumors member

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    Oct 20, 2012
    Location:
    Montpellier, FR
    #164
  15. alexstjo macrumors member

    Joined:
    Sep 11, 2009
    #165
    Ok as promised. Here are my results with the Apple 29W and Apple cable. IOS 11.01 iphone 8+, wifi bluetooth on

    % time (m:sec)

    1 0:00
    2 0:33
    3 0:45
    5 2:05
    9 5:00
    10 5:05
    15 7:32
    19 10:03
    27 15:00
    35 20:00
    43 25:00
    50 30:00
    58 35:00
    63 40:00
    67 42:45
    72 46:14
    76 50:00
    79 55:00
    82 60:00
    88 70:00
    94 80:00

    looks like Apple 29W was a little better up to 30 mins.






     
  16. ewam macrumors newbie

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    Oct 21, 2014
    #166
    @alexstjo , @Arni99 , anyone else -

    - is there a chance for a 12W comparison with 8+?
     
  17. BeatCrazy macrumors 65816

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    Jul 20, 2011
    #167
  18. samo350, Sep 30, 2017
    Last edited: Sep 30, 2017

    samo350 macrumors member

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    Oct 20, 2012
    Location:
    Montpellier, FR
    #168
    It's 86W Apple Charge, I don't have the 29W.
    You can see in my video that the iPhone can consume more than 18W at 9V (9.25V/2.33A which is nearly 22W).
    The 86W Apple charger can deliver up to 27W at 9V.
     
  19. BeatCrazy macrumors 65816

    Joined:
    Jul 20, 2011
    #169
    Looks like what you're seeing is the 87w delivering 9V @ 2.4A = 21.6w. Which is still not as good as what the 29W Apple charger should be apple to deliver (14.5V @ 2A). I'll be able to test on Monday when my iPhone 8 arrives.
     
  20. malikkamran macrumors 6502

    malikkamran

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    Oct 6, 2016
    Location:
    Pakistan
    #170
    Can anyone test fast charging on small iPhone 8
     
  21. Techman82 macrumors member

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    Apr 4, 2016
    #171
  22. Technarchy macrumors 603

    Technarchy

    Joined:
    May 21, 2012
    #172
    Save your money. iPad charging brick might be speedy enough for you.

    Test was done like I normally use my phone. Battery gets low, phone gets plugged it, that’s it.

    1:08 AM = 4%
    1:38 AM = 42%
    2:08 AM = 76%
    2:38 AM = 94%

    I won't bother with USB-C bricks and cables until I get a new MacBook Pro.
     
  23. masotime macrumors 68000

    masotime

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    Jun 24, 2012
    Location:
    San Jose, CA
    #173
  24. Techman82 macrumors member

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    Apr 4, 2016
    #174
    About the 29w charger, Are they only 2 charging profiles on the 29w apple charger (14.5v@2.0 & 5.2v@2.4)? And if so, is it possible that the 8/8plus are not able to charge at 14.5v and only at 5.2v?
     
  25. deleder2k macrumors newbie

    deleder2k

    Joined:
    Apr 14, 2016
    #175
    Appleinsider with new test on 8. I don’t get why they don’t compare it to a iPhone 7. Both phones comes with 5W standard. My 7 charges to 48% in 30m with 29w charger
     

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