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iPad 3 failing to charge from iMac usb port

14119 Views 30 Replies Latest reply: Mar 22, 2012 12:20 PM by dnimtz RSS
  • kostby Level 4 Level 4 (2,265 points)
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    Mar 16, 2012 10:22 PM (in response to Brian Christmas)

    Brian, yes, I read your initial post. I was replying specifically to kla80t who was reporting a similar charging issue with a MacBook Pro, year and model unspecified.

     

    Which device are you suggesting has the hardware bug, the iMac or the new iPad?

     

    Do you have other USB devices attached to the iMac while attempting to charge the new iPad?

     

    Have you checked your iMac USB port power output to the iPad in System Profiler as suggested in this support document?  http://support.apple.com/kb/HT4049

    Screen shot 2012-03-17 at 1.14.43 AM.png

    (Image from the support doc referenced above)

     

    Message was edited by: kostby

  • iVmichael Level 6 Level 6 (13,725 points)
    Currently Being Moderated
    Mar 16, 2012 10:48 PM (in response to Brian Christmas)

    Brian Christmas wrote:

     

    Turns out the iPad 3 must be asleep to slowly charge.

     

    No my finding, the one I picked up yesterday morning (Robina, Qld Store) finally got down to 6% earlier while I was downloading iMovie and I just connected the power supply and it's now at 18% about an hour later. It's on and working but does appear to be slowly charging back up ...

     

  • Cyberhugger Level 1 Level 1 (5 points)
    Currently Being Moderated
    Mar 17, 2012 12:00 AM (in response to Brian Christmas)

    We replaced iPad 1's with iPad 3's today. What I notice with charging is that they charge much slower than the old iPads but I would expect this. It's the same power supply as the old iPads but the new iPad is certainly using much more power to run. So, if you're connected to the charger while you're using the new iPad there is less available power going to charging the battery, hence the slow charging rate.  It's a bit slower when it's off too.

     

    The other thing I noticed is that the back gets much warmer than I recall for the old iPads. Is it possible that it's getting warm enough that the charging circuitry is slowing down to avoid a thermal issue?

  • rossfromca Level 1 Level 1 (0 points)
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    Mar 18, 2012 4:21 PM (in response to Brian Christmas)

    Actually, I am having the same problem with the supplied 10W charger. The new iPad is reporting not charging but the charger works fine with other devices. The new iPad does seem to charge slowly even when it says
    "not charging" I don't think this has anything to do with charging from a USB port. Must be a bug.

     

    Ross

  • droslovinia Calculating status...
    Currently Being Moderated
    Mar 18, 2012 4:53 PM (in response to Brian Christmas)

    Thank you!

     

    I got min on Friday and it has NEVER recharged in my MBP.  Since the first one was defective and had to be returned, I really, really, didn't want ot take this iPad back, too.  I was extremely lucky to find one for replacement to begin with - and had to switch colors.

     

    I can't help but think that a stink will be raised about this - at least over the fact that Apple was not telling anybody about it.

     

    Not sending mine back, though!

  • Ipad34g Calculating status...
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    Mar 22, 2012 4:16 AM (in response to Brian Christmas)

    ok now after doing some googling i realised that you can charge your ipad 3 using old pc. The one i am using is about 10 years old.

     

    Initially, it said not charging. It is to do with the power output from the USB.

     

    Now it has charged 5% in about 15 minutes! Same port.

     

    Solution: Increase outtage of USB power. Install an application called ASUS 'AiCharger'. (Its free Google it)

     

    You do not have to manually do anything, JUST install the setup file. Restart your PC.

     

    Reinsert your USB CABLE as normal and Bob's your uncle!

     

    Apple you suck, all you needed to do was release a script to increase the USB power output!

  • Ipad34g Level 1 Level 1 (0 points)
    Currently Being Moderated
    Mar 22, 2012 5:00 AM (in response to Brian Christmas)

    This is stupidness, 2% an hour is too low.

     

    Do what i did its a simple method it works a charm, mine is now at 35%!

     

    Good Luck.

  • droslovinia Level 1 Level 1 (0 points)
    Currently Being Moderated
    Mar 22, 2012 5:19 AM (in response to Ipad34g)

    I don't know that Apple *****, necessairly, but it would have been nice to see Mr. cook say something like "and what's the tradeoff for all this battery7 power? The new iPad might run a little warmer, and it is better recharged through the included AC plug, but it's a relatively small tradeoff for all you get."

     

    I also can't help but believe that a "simple script" might end up burning something out over time. It's fine for any old PC lying about my house, but I don't want my MBP to go belly up anytime soon.

  • atl7187 Level 1 Level 1 (5 points)
    Currently Being Moderated
    Mar 22, 2012 11:57 AM (in response to Brian Christmas)

    Here is the video I posted on youtube of my charging problem:

     

    http://www.youtube.com/watch?v=9YaDslLaMLg

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