Comment on Don't Plug Your Phone into a Charger You Don't OwnparentComments−peterwwillis13yThat would not work. Data pins are used to provide power negotiation, and in Apple's case using a proprietary protocol. At the very least you need some specific voltages on the lines to make it charge.http://www.idownloadblog.com/2012/05/21/apple-power-adapter-...http://learn.adafruit.com/minty-boost/icharging−mindslight13yI imagine basically all of those convenience ports only put out 500mA anyway, so the negotiation isn't needed.−jonny_eh13yiPads require more juice. Whenever I plug my iPad into anything other than Apple's 10W adapter or a Mac, nothing happens.−MichaelApproved13yI plug my original iPad into other USB devices that put out 5W and it still charges. The iPad says it's not charging but it does, slowly.
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That would not work. Data pins are used to provide power negotiation, and in Apple's case using a proprietary protocol. At the very least you need some specific voltages on the lines to make it charge.
http://www.idownloadblog.com/2012/05/21/apple-power-adapter-...
http://learn.adafruit.com/minty-boost/icharging
I imagine basically all of those convenience ports only put out 500mA anyway, so the negotiation isn't needed.
iPads require more juice. Whenever I plug my iPad into anything other than Apple's 10W adapter or a Mac, nothing happens.
I plug my original iPad into other USB devices that put out 5W and it still charges. The iPad says it's not charging but it does, slowly.