How long does your battery take to charge off the A/C charger?

Discussion in 'iPad' started by Scott-n-Houston, May 4, 2010.

  1. Scott-n-Houston macrumors 6502a

    Joined:
    Apr 27, 2008
    Location:
    Houston (duh)
    #1
    My iPad 3G was at 18% when I plugged it in last night at about 11:30 pm.
    8 hours later, it shows 97%.

    That's a LONG time. Is that normal?
     
  2. mysticbluebmw macrumors regular

    Joined:
    Jun 11, 2009
    #2
    From empty to full seems to take me about 3.5 - 4 hours, give or take.
     
  3. master-ceo macrumors 65816

    master-ceo

    Joined:
    Sep 7, 2007
    Location:
    The SUN
    #3
    same here.



    OP, make sure you didn't get your iPhone (if any) charger mixed up with your iPad one.
     
  4. Scott-n-Houston thread starter macrumors 6502a

    Joined:
    Apr 27, 2008
    Location:
    Houston (duh)
    #4
    Thanks...
    I used a USB extension cable. That could make the difference I guess, but it's always worked fine with my iPhone and others.

    I definitely used the 10w A/C charger for the iPad though.

    I'll try it next time without the extension and see how it goes.
     
  5. VTMac macrumors 6502

    Joined:
    Jun 9, 2008
    #5
    Most likely it's the extension. Typical extension don't provide as much current as the iPad requires.
     
  6. patp Guest

    Joined:
    Apr 10, 2008
    #6
    USB charging is not recommended as most USB ports do not put out enough juice for the iPad to charge quickly. You'll be charging all day and night with USB.

    The included iPad power supply/charger is rated much higher than the iPhone charger. My iPad usually gets a full charge in about 3.5 to 4 hours from an almost empty battery.
     
  7. Scott-n-Houston thread starter macrumors 6502a

    Joined:
    Apr 27, 2008
    Location:
    Houston (duh)
    #7
    Just to clarify, I was off the iPad power supply/charger. (the 10w ac charger)
    I just had an extension between the 3' sync cable and the charger itself.
    I bet that was the reason.
     
  8. PBG4 Dude macrumors 68030

    PBG4 Dude

    Joined:
    Jul 6, 2007
    #8
    Was any of the wiring warm/hot to the touch? I'd think there'd have to be some serious resistance in the extension wire if it caused your charging time to double. That means 4 hours of 2.1A was dissipated as heat. Seems like that much heat could cause a fire.
     
  9. Scott-n-Houston thread starter macrumors 6502a

    Joined:
    Apr 27, 2008
    Location:
    Houston (duh)
    #9

    Good point! No, it wasn't hot.

    I also sort of wonder if it was the battery gauge. I unplugged it. Removed the extension cable, then plugged it in, and it was at 100% within a minute or so.
     

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