Power from USB

Discussion in 'iPad 2 Forum' started by Gtatler, Jan 26, 2012.

  1. Gtatler
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    Gtatler iPad Enthusiast

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    Question. When connected to my PC USB port my iPad states "not charging". My ipodtouch could recharge from the USB port. Anybody know why the difference ?
  2. sjleworthy
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    sjleworthy Super Moderator Staff Member

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    Most computers don't deliver enough energy to charge your iPad via the USB cable. Most won't even keep the charge constant, whilst some newer computers deliver enough charge to charge up your iPad very very slowly. This is a known fact and most normal.

    The best solution is to use the wall charger. Even this can vary in times depending on what and how many power hungry services or apps you have open in memory at any given time, whether the iPad is off or on even.
  3. giradman
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    giradman iPad Guru

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    Agree w/ the previous post - this is an oft asked question and a little searching would have provided much information - :)

    The iPad charger provides 10W of power (basically 5V x 2Amps); below is a partial quote from a Wiki article on USB (part of the 'power' discussion) - the numbers come no where needed to charge your iPad; a 'twickle' charge may be provided w/ the higher power USB options but you'll still see the no charging indicator; as suggested use the wall adapter or a similarly powered alternative - good luck!

  4. sjleworthy
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    sjleworthy Super Moderator Staff Member

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    Yup, a 'twickle' is all you'll get :D:p
  5. Redneck_Randy
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    Redneck_Randy iPad Enthusiast

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  6. Rockbottom
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    Rockbottom iPad Fan

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    Hard to imagine how it can work... Let's us know.

    Sent from my iPad2 3G 32 gig (not JB'ed) / using iPF
  7. Redneck_Randy
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    Redneck_Randy iPad Enthusiast

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    They are on back order so it may be awhile
  8. robert1305
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    robert1305 iPF Novice

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    It takes my ipad over 2hrs to charge up to 100% from a wall charger, is this normal?
  9. giradman
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    giradman iPad Guru

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    Well that's a 'loaded' question - :) We need to know at what level of discharge that you plug in your wall adapter? Two hours when the iPad's battery is pretty much discharged is as expected - check this Apple Battery Support Article for more information -good luck!

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