Charging from computer?

Discussion in 'iPad Help' started by mamiamjo, Apr 11, 2010.

  1. mamiamjo
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    mamiamjo iPF Novice

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    I thought the ipad would charge when plugged into a computer via the usb cable, but mine does not. In fact it says "not charging"
    Is this normal? Do I need to always use the plug that came with it to charge?
  2. col.bris
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    col.bris Administrator Staff Member

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    It is charging but real slow because. The USB port you are using is for low powered devices
    Either get a powered hub that offers hi power support or charge iPod from wall socket
  3. JohnnyApple
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    JohnnyApple Administrator Staff Member

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    Col.bris is right the iPad is real picky about the amount of power that the USB ports put out.
  4. Umdterps2002
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    Umdterps2002 iPF Novice

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    Agreed ... I have one media pc that is devoted to our iPods ... My wife's iPod touch charges fine but with same cable my iPad doesn't charge

    Kinda sucks but I go to a wall for charging ... But I get a good 10 hours with basic surfing, video, podcast listening
  5. Rasputina
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    Rasputina iPad Enthusiast

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    I tested mine out and the charging time is not significantly different when charging from my mac vs the wall charger
  6. Takenover83
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    Takenover83 iPad Fan

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    If the iPad is in sleep mode, it will charge. If the screen is on, it will not. Test it out!
  7. Bremen
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    Bremen iPad Addict

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    I will have to check that out.....

    I really don't care though, as I sync to a little gateway netbook and it's on it maybe 5 minutes. I am lucky that I do in fact have two wall chargers. I have an old one from the 3 gen iPod, last one they included a wall charger with.... And it works great.

    In general I don't trust USB charging anyway. Some products won't care if the compute goes to sleep....etc.
  8. Caps
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    Caps iPF Novice

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    EDIT;
    This is incorrect
    Last edited: Apr 13, 2010
  9. Takenover83
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    Takenover83 iPad Fan

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    This is incorrect. It will charge just fine, if the voltage is right, regardless if apple or mac.
  10. Caps
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    Caps iPF Novice

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    Ah, I could have sworn I read that somewhere, but i don't have any way to test it. My bad!
  11. gentlefury
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    gentlefury iPad Guru

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    depends on what you plug it into. If I plug it into my mac pro, no problem charging...plug it into the keyboard I can sync but it says no charging.
  12. Takenover83
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    Takenover83 iPad Fan

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    Note the percentage of power. Plug the iPad in. Put it in sleep mode. Come back in 30min-1HR and recheck the percentage. Did it change? It seem's to charge just fine, as long as the screen is off, and it is sleeping.
  13. wot_fan
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    wot_fan iPad Enthusiast

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    Out of curiosity, how old is your Mac Pro? My three year old MP won't charge (at least with the screen on).
  14. gentlefury
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    gentlefury iPad Guru

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    G5 and first gen mac pro won't charge. Mine is only about a year old.
  15. wot_fan
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    wot_fan iPad Enthusiast

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    Thanks for the info. Too bad my MP (dual quads @ 3GHz) is still enough machine for me. I therefore won't be upgrading any time soon. Funny, I never kept a PC for more than 3 years ;).
  16. col.bris
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    col.bris Administrator Staff Member

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    The keyboard on any Mac is low power. It may sync but will not charge. I will check with my support guy but I think the rear ports on Mac pro are high power front are low but unsure
    Last edited: Apr 13, 2010
  17. wot_fan
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    wot_fan iPad Enthusiast

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    I just tried the rear USB port on my Mac Pro, no luck. I guess I'll just get a high powered hub when I find an iPad compatible one ;).
  18. stever
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    stever iPad Fan

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    Yes,

    Charging from some USB ports, especially on PCs,
    will not work.

    Here is an article on MaximumPC, discussing this.

    Apple apparently designed the IPad to need just a bit more than the USB 2.0 standard.
    Many people are suggesting it is a plot to make PCs look bad in comparison to Apple.

    It appears any powered (with a power cord plugged in) USB hub, should work.
    Probably an easy cheap fix. But it is annoying.

    .
  19. Isaac Newton
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    Isaac Newton iPad Fan

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    The iPad will most definitely charge USB linked to a pc...as mentioned before, utilizing a well powered USB port is mandatory.
  20. gentlefury
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    gentlefury iPad Guru

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    I don't think it was to make it incompatible with windows....my portable hard drive requires more power than most pcs and g5s as well.

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