Does iPhone SE support faster charging?

Discussion in 'iPhone' started by Dj64Mk7, Apr 21, 2016.

  1. Dj64Mk7 macrumors 6502a

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    #1
    I know the iPhone 6s and 6s Plus support faster charging using the 12W iPad charger, but does the iPhone SE support this as well?
     
  2. Reno Raines macrumors 6502a

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  3. CIA macrumors 6502a

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    #4
    So short answer is nobody knows yet. I loved the fast charge capability of my 6, but hated it's size. 3 days in I'm back in love with the size of my SE, but can't tell if it's fast charging or not (I always wander off and forget it's plugged in.

    I guess in the end it doesn't matter, since I'm rarely in a rush to charge, and the new battery life of the SE kills my old 6's battery. The 6 barely lasted a day, my SE lasted 3 days on it's first full rundown.
     
  4. JoEw macrumors 65816

    JoEw

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    #5
    How has no one yet started the timer on their iphone se and plugged it into a 12W brick?

    Very surprising this is still a mystery, the best feature of the 6 I will miss if I decide to grab an SE.
     
  5. Channan macrumors 68030

    Channan

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    #6
    The battery is so small, I don't think it really matters. My Galaxy S7 Edge's battery is twice the capacity. That's when you really need fast charging.
     
  6. Sensamic macrumors 68030

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    #7
    As far as I know, iPhones don't support fast charging. Apple never mentions it.
     
  7. C DM macrumors Westmere

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    #8
    When it comes to iPhones the fast charging that is typically referenced is essentially the ability to charge with more than 1 Amp, which phones like the 6 or 6 Plus, for example, can do.
     
  8. pcoventry76 macrumors member

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    Apr 3, 2016
    #9
    Under an hour if I link it to my Imac. But that will do up to 100W for apple devices so no idea what I actually get

    I got 50% when I ran for an hour on the bus which has built in USB charging at I suspect 5V 2A
     
  9. Dj64Mk7 thread starter macrumors 6502a

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    #10
    Sounds like faster charging then.
     
  10. FuNGi macrumors 65816

    FuNGi

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  12. xixi.li macrumors regular

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    #13
    Fast charging means A thirty-minute charge will get the mobile phone to 75% of battery.As far as I know, iPhones don't support fast charging.
     
  13. rigormortis, Apr 23, 2016
    Last edited: Apr 23, 2016

    rigormortis macrumors 68000

    rigormortis

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    #14
    system report is how you measure charging currents on iOS devices!! damnit!! get viral already! I'm sick of hearing people say there is no way to tell. you add current available + extra operating current to get the actual charging rate . in this example it is 2100 ma, which is the same # you get on an ipad.. but this might be 2600 ma

    if you actually look up system report you will also learn that the apple watch has a maximum charging current of 1000 ma

    note : charging 6s and 6s+ at 2100 ma requires El Captian



    screen shot
    --- Post Merged, Apr 23, 2016 ---
    fast charging is defined as " anything faster then the usb standard current of 5 v @ 500 ma " its vague.
     

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  14. C DM macrumors Westmere

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    #15
  15. Dj64Mk7 thread starter macrumors 6502a

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    #16
    Thanks for the info.

    The iPhone 4S charges at 1500mA, which is equal to 1.5 A, or 165W.
    The iPhone 6 charges at 2600mA, which is equal to 2.6 A, or 286W.
    According to System Information, the iPhone SE charges at the same rate as the 4S.
     

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  16. C DM macrumors Westmere

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    Oct 17, 2011
    #17
    I was under the impression that prior to
    iPhone 6 the phones wouldn't go above 1 Amp.
     
  17. Dj64Mk7 thread starter macrumors 6502a

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    #18
    I thought so too. I guess it's a pleasant surprise.
     
  18. CIA macrumors 6502a

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    #19
    Ok hard data here. Filmed it using my iPad time-lapse mode.
    Completely dead iPhone SE plugged into my iPad Pro 12W charger brick. Plugged in at 10:01am, actually powered on (auto power on from plugging it in) at 10:02am. I set the screen brightness to the lowest level but left the screen on to film the charge progress (so it might have charged slightly slower then if the screen was off)
    Anyway, hit 100% charge at 12:15.
    So thats 134 minutes from empty to full using a 12w iPad Pro charger. (with screen on but at lowest brightness)

    I'll run it down again and try the same experiment with the included 1amp charger in a few days when the battery dies again. I love the longevity of the SE battery compared to my old 6!
     
  19. HEK, Apr 23, 2016
    Last edited: May 4, 2016

    HEK macrumors 68030

    HEK

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    #20
    They don't call it that, but you for sure will get faster charging by using iPad 2 amp power adapter. The charger is in the phone, the power adapter turns high voltage AC current into 5v DC.
    --- Post Merged, Apr 23, 2016 ---
    Note that the charge rate drops as the phone battery builds in charge. From zero percent to between 70 and 80% the onboard charger will take charge at it's highest rate assuming power adapter has enough amps. After that the rate drops off to preserve battery life to a Trickle charge at high ninety percent stake. Then it will cycle on and off maintaining between 99 and 100% safely.

    When I tested my 6s Plus, I was getting one percent increase per minute till the 80% point at which time the rate fell off and kept reducing. If you want maximum juice to go to charging battery, turn off phone or at least turn on airplane mode so the radios are not broadcasting.
     
  20. CIA macrumors 6502a

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    Jun 17, 2003
    #21
    USB is 5v. so 1.5A @ 5V is 7.5W. The 2.4amp@5v (iPad charger) is 12W.

    286W 5v would be 57.2 amps and would blow up your phone :eek:
     
  21. Dj64Mk7 thread starter macrumors 6502a

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    Sep 15, 2013
    #22
    Oh, my bad. I trust you.
    I guess WolframAlpha failed me.
     
  22. rigormortis macrumors 68000

    rigormortis

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    Jun 11, 2009
    #23
    straight usb is 5 v @ .5 amp
    --- Post Merged, Apr 24, 2016 ---
    when looking at system info, i think but i am not sure, that it is
    Current required + Extra, so its 1000 ma
     
  23. CIA, Apr 25, 2016
    Last edited: Apr 25, 2016

    CIA macrumors 6502a

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    #24
    Screen Shot 2016-04-25 at 5.13.54 PM.png Screen Shot 2016-04-25 at 5.30.49 PM.png

    UPDATE: Ran the test again today, but using the included 5W 1amp charger. Took almost the same amount of time, only about 20-25 minutes longer. This time there was a big difference in time from when I plugged it in, and when it powered on finally (it must have been really dead.) Last time it went from flashing the "plug me in" graphic to powering on in about 2 minutes. This time it took almost 7 minutes to power on. Once on it was set with the screen at minimum brightness, but set on all the time so the video camera could capture the charge progress.

    I also forgot I had a watts-up thing, and this time the charger was plugged into that also. The 1 amp charger pulled on average 4-4.2W for the bulk of the charge, then started to taper off at 70%, and was about 1.8-2W from 90-100%.

    So it looks (to me at least) after testing that the iPhone SE doesn't support charging above 1amps. The 12W iPad Pro charger did charge it slightly faster, but we're talking 2 hours 14 minutes with that, vs 2 hours 40 minutes with the included smaller 1amp charger. Perhaps the 12W 2.4amp iPad Pro charger is a more efficient charger and can output the true max of 5W for the iPhone SE? (because it has some overhead room not being used? I dunno) I'm probably going to run this test one more time using the iPad Pro charger but this time plugged into the Watts-up thing and test that theory. I think it will feed the iPhone SE a solid 5W for the bulk of the charge (before the taper at 70%) vs the 4.2W the standard charger puts out. That small difference probably makes the iPad Pro charger charge up the iPhone SE a few minutes faster.

    Interesting footnote though. For ***** and giggles (and because it was dead) I did the same test using my old iPhone 6 on the 12W iPad Pro charger, but this time also plugged into the watts-up as well. I should mention my iPhone 6 battery is terrible and is in no way representative of a normal battery. It's crap battery performance is part of why I bought a SE. According to iBackupBot it's cycle count is 478. <See attached screen shot>
    Anyway the iPad Pro charger pulled 5.5-6.1W for the bulk of the charge, and also started to taper at about 70%, pulling 2.5-3W at the end to 100%. Dead to 100% charge in 1 hour 49 minutes.

    /edit corrected my times after reviewing the time-lapse video of the charges.
     
  24. Richdmoore macrumors 65816

    Richdmoore

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    #25
    Thanks. It looks like you are correct (no fast charging with the iPad adapter), but the watts up using the 12w adapter should prove it for sure.
     

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