Charging the new iPad...

Discussion in 'iPad' started by elaniemay, Mar 15, 2012.

  1. elaniemay, Mar 15, 2012
    Last edited: Mar 15, 2012

    elaniemay macrumors 6502

    elaniemay

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  2. kmichalec macrumors 6502a

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    Aug 14, 2010
    #2
    I wouldn't really classify that as being a "bitch" to charge. Bigger battery equals more charging time. Not really a surprise there. Just plug it in at night. Issue solved.
     
  3. HeySamantha macrumors member

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    Mar 15, 2012
    #3
    I think it's cute that it comes with it's own little mini wall plug-in, but will I still use the charger that came with the iPhone, as well?
     
  4. Geckotek macrumors G3

    Geckotek

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    #4
    No, the iPhone charger does not have enough (amperage?) to charge the iPad.
     
  5. CNeufeld macrumors 6502a

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    Nov 25, 2009
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    Edmonton, AB
    #5
    Good luck with that... The iPhone charger puts out half the amps of the iPad charger, I think. I would use the iPad one whenever possible.

    C
     
  6. HeySamantha macrumors member

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    Mar 15, 2012
    #6
    Figured as much :)
     
  7. Clix Pix macrumors demi-goddess

    Clix Pix

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    #7
    No, you need to use the power supply which comes with the iPad, as it is more powerful than the one for the iPhone or iPods.

    Not a big deal to me that it might take longer to charge the new iPad; I usually charge mine overnight anyway, so that will not be an issue.
     
  8. Macman45 macrumors demi-god

    Macman45

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    #8
    Hardly a deal breaker, and expected anyway...When not in use I will charge it.
     
  9. HeySamantha macrumors member

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    Mar 15, 2012
    #9
    thought so. Oh well, it'll be getting charged overnight anyway. Makes no difference haha
     
  10. pat park macrumors 6502a

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    #10
    Pain? Just takes longer. A lot longer. I always charge overnight.

    Break a leg. Now that's pain.
     
  11. brandon8419 macrumors member

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    Oct 11, 2011
    #11
    eh, won't bother me. As others said, I'll charge it overnight

    I'm sure it's obvious, but do you plan to run your battery dead on the first use and then do a full charge? Or is all that stuff just an urban myth - I don't want to hurt the battery life on my first use lol
     
  12. xraytech macrumors 68030

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    Mar 24, 2010
    #12
    What's the big fuss?

    Just plug it in before you go to sleep every night.
     
  13. santaliqueur macrumors 6502a

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    Aug 7, 2007
    #13
    I bet all the chargers will still work. I charge my iPad on the dock connected to a powered USB hub. The battery symbol says "Not Charging", but it is charging, only very slowly. Probably under 10%/hour. That's fine for charging overnight.
     
  14. hcho3 macrumors 68030

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    #14
    I don't see any of this as an issue. I will be glad to take retina display over this small complain.
     
  15. CNeufeld macrumors 6502a

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    Edmonton, AB
    #15
    Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B176 Safari/7534.48.3)

    At 10% per hour, it would take 10 hours to fully charge the iPad 2. The new iPad battery is 70% larger. That puts it at 14 hours to fully charge, according to my math.

    C
     
  16. onthecouchagain macrumors 604

    onthecouchagain

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    Mar 29, 2011
    #16
    Longer charge time is a fairly minor inconvenience, but the pay off of maintaining 10-hour battery life is worth it.
     
  17. gigaguy macrumors 65816

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    USA
    #17
    I wonder if there is any diff between fast or slow charging pertining to wear, life. I'd guess faster is better, since it uses less time. I usually use the slower iPod/iPhone charger overnight. The iPad one is big and bulky for where I plug in near the bed.
     
  18. crapbag8 macrumors member

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    Aug 10, 2010
    #18
    Interesting to see if there will be any solutions to this in the future, whether from Apple or other third party accessories. Most people will charge overnight (myself included) but it's nice when you're in a hurry to get out of the house and you can plug in your iPhone for 20 minutes and get a decent percentage charged.
     
  19. Chupa Chupa macrumors G5

    Chupa Chupa

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    #19
    I don't really see it as a big deal if battery life is them b/c if I do let it go all the way down it charges overnight when I'm not using it. But rarely to I let it go below 40% before I charge. I think there is an Apple tech note stating it's not good for the battery to let it constantly fall below 20% except for a monthly maintenance.
     
  20. homeboy macrumors 6502

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    #20
    Why is this even an issue when the device will be charged over night??
     
  21. Nothlit, Mar 15, 2012
    Last edited: Mar 15, 2012

    Nothlit macrumors regular

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    Sep 14, 2009
    #21
    The iPad 2 has a 25 watt-hour battery. The third-gen iPad has a 42 watt-hour battery. The following estimates assume a simple calculation of (watt-hours)/(watts) = (hours), which is not necessarily true in the real world (see below).

    An iPad wall charger outputs 10 watts (5 volts @ 2 amps). Therefore, it could theoretically charge an iPad 2 in about 2.5 hours, or an iPad 3 in 4.2 hours.

    An iPhone wall charger outputs 5 watts (5 volts @ 1 amp). Therefore, it could theoretically charge an iPad 2 in about 5 hours, or an iPad 3 in about 8.4 hours.

    A typical USB 2.0 port outputs 2.5 watts (5 volts @ 0.5 amps). Therefore, it could theoretically charge an iPad 2 in about 10 hours, or an iPad 3 in about 16.8 hours. (Some USB ports output as little as 0.5 watts, resulting in theoretical charge times of 50 hours and 84 hours, respectively.)

    All that being said, battery charging is not a linear process, so the actual charging times are probably slightly longer than what I calculated above and not necessarily direct multiples of each other, especially once you start calculating partial charge times (i.e., 80% to 100% rather than 0% to 100%). This is just a theoretical estimate to give an idea of the scale between the different charging sources and the new iPad vs. the iPad 2.
     
  22. Tribefan macrumors member

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    Aug 2, 2011
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    Charlotte, NC
    #22
    Here's a question: I saw a charging cradle that charges an iPad and iPhone simultaneously. If the iPhone would charge an iPad too slowly, would using an iPad charger on an iPhone charge it much faster than the standard charger? Would it cause any damage or premature failure to the iPhone's battery?
     
  23. iohass macrumors regular

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    Mar 11, 2012
    Location:
    Canada
    #23
    I charge my ipad1 once every 3-4 days probably.. maybe even less often.

    No problem leaving it overnight for me.
     
  24. Geckotek macrumors G3

    Geckotek

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    Jul 22, 2008
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    NYC
    #24
    Sorry, that's not "working" in my definition.
     
  25. Nothlit macrumors regular

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    Sep 14, 2009
    #25
    The amount of power drawn from the charger depends on the device being charged, not the charger.
     

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