Charging iPad Pro Question

Discussion in 'iPad' started by Barnum, Oct 2, 2017.

  1. Barnum macrumors newbie

    Joined:
    Sep 4, 2008
    #1
    Sorry if this question has been answered before but I haven’t been able to find a thread about it. I’ve misplaced the charger for my 2017 iPad pro. Is it safe to power it up using the USB 3.0 ports of my desktop computer or my (mid 2012) MacBook Pro?
     
  2. MacManiac76 macrumors 65816

    MacManiac76

    Joined:
    Apr 21, 2007
    Location:
    White Mntns, Arizona
    #2
    Yes you can charge through the USB ports. It will just charge at a slower rate.
     
  3. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #3
    You really need to find your charger as some USB will charge very slow, some not at all.
     
  4. cruisin macrumors 6502a

    cruisin

    Joined:
    Apr 1, 2014
    Location:
    Canada
    #4
    The MacBook will charge the iPad at full speed, due to Apple increasing the power output for their own devices. You should get the full 2.1A, same as the iPad charger.

    See: http://support.apple.com/kb/HT4049. It should tell you how much power you are getting.

    The desktop will not have this feature, so it will charge very slowly (0.5A). The iPad will say its not charging, as the screen will need more than 0.5A to stay on. If you still want to charge it, it can take up to 24 hours to charge this way, keeping the screen off (I did this once as an experiment). Turning on Airplane mode will shorten the time, but not by much.

    Devices request the power they need over USB, so it will be safe to charge (the charging power will not exceed any limits). The only potential issue is if you use a cheap charger, it can give the wrong power amount and there were news reports of a bad charger electrocuting people.
     
  5. Precursor macrumors 6502a

    Precursor

    Joined:
    Sep 29, 2015
    Location:
    Istanbul
    #5
    You can charge it from any usb port anywhere, just don't use while charging.
     
  6. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #6
    Not all USB ports are created equal. SO this is not true.
     
  7. Precursor macrumors 6502a

    Precursor

    Joined:
    Sep 29, 2015
    Location:
    Istanbul
    #7
    I charged my iPad from USB ports on TVs in hotel rooms to USB ports on planes. USB port has to provide some sort of a power in order for the plugged item to operate. So yes, it IS true. As long as you don't use the iPP it will be charged. (better in Airplane mode)
     
  8. apolkowski, Oct 5, 2017
    Last edited: Oct 5, 2017

    apolkowski macrumors member

    Joined:
    Mar 9, 2012
    Location:
    Poland, Warsaw and Masurian Lake District
    #8

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7 October 2, 2017