Difference between charging an iPhone via USB and wall outlet. [My experience]

Discussion in 'iPhone' started by Prof., Oct 24, 2011.

  1. Prof. macrumors 601

    Prof.

    Joined:
    Aug 17, 2007
    Location:
    Chicago
    #1
    I'll keep this short and to the point.

    Basically, when I charge my iPhone with the outlet adaptor that came with the iPhone, it charges surprisingly fast. The downside: it also drains surprisingly fast.

    The solution I found: When I charge it via USB with my MacBook, it charges surprisingly slower than it does when plugged into a wall outlet, however the battery lasts longer.

    Opinion: I think charging it via USB gives the iPhone a fuller charge and gives a more accurate reading of the battery percentage.

    If one person gets better battery life because of this post, I did good. Or maybe this is just my imagination. All I know is this.
    Via wall outlet: iPhone lasts from 7:15am to about 4-ish pm​
    Via USB: iPHone lasts from 7:15am to about 8:30-ish/9:00-ish​
     
  2. Will69 macrumors regular

    Joined:
    Oct 24, 2011
    #2
    I have a hard time accepting this "data".

    What are the differences in your day that dictate which charging method you choose ?
     
  3. wordoflife macrumors 604

    wordoflife

    Joined:
    Jul 6, 2009
    #3
    That's interesting. I don't think there's a difference with my phone though.
     
  4. Prof. thread starter macrumors 601

    Prof.

    Joined:
    Aug 17, 2007
    Location:
    Chicago
    #4
    There really are no differences monday through saturday. I get up at 7:15, go to school, come home and then work til 9-ish. My days are pretty much identical to one another. Life of a full-time college kid/employee. :D:eek:
     
  5. sweetbrat macrumors 65816

    sweetbrat

    Joined:
    Jun 17, 2009
    Location:
    Redford, MI
    #5
    I've charged mine via USB on my computer; via wall outlet; via the speaker with dock that's in my bedroom. No differences in any of them.
     
  6. Superbbrr macrumors member

    Joined:
    Oct 15, 2011
    #6
    I've noticed that wall charging charges about 2x faster than USB charging. :confused:
     
  7. Frasern1 macrumors 6502a

    Joined:
    Oct 10, 2011
    Location:
    North Carolina
    #7
    Doesn't the iPhone draw more power from the wall so it will charge faster? I don't think it will affect the time it last though. What I have noticed is sometimes the first ~10% of my battery goes really fast and other times it doesn't. But I always use the wall plug, just easier for me.
     
  8. JGC1986 macrumors regular

    JGC1986

    Joined:
    Jul 5, 2008
    #8
    Ive noticed when I charge via the wall outlet all night I wake up and it is on 92% and I have to unplug and replug it to get it to 100%. This has happened 4 times in a row...
     
  9. Charles1313 macrumors newbie

    Joined:
    Oct 25, 2011
    #9
    Iphone charging

    Problem is when one is using a USB attachment. Charge directly to the CPU and no problem....
     

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