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Will the new 12W power adapter charge my iPad 3rd gen faster?

15044 Views 56 Replies Latest reply: Mar 25, 2014 9:48 AM by Karkinos RSS
  • Philly_Phan Level 6 Level 6 (11,010 points)

    Again, you alleged that Apple confirmed your belief.  Where is Apple's statement?

  • JimHdk Level 7 Level 7 (21,620 points)

    I give up. Just pop for a 12W charger and see what happens. It only costs $19.

  • Philly_Phan Level 6 Level 6 (11,010 points)

    Why?

     

    The 10W doesn't improve my iPod's charge time.  Why in the world would the 12W be any better.

  • JimHdk Level 7 Level 7 (21,620 points)

    It certainly improves the charge time of my iPod Touch and I've measured it.

     

    If you don't believe me or think I'm nuts that's OK.

  • Philly_Phan Level 6 Level 6 (11,010 points)

    OK.

  • Laxman25 Level 4 Level 4 (2,230 points)

    Rawrrrr ill fight to the death defending the 10w charger and I'm not wrong.... Who cares

  • Semp1 Calculating status...

    I heard the sky is blue but how can I believe this if "The Creator" has not confirmed this?

  • Philly_Phan Level 6 Level 6 (11,010 points)

    Semp1 wrote:

     

    Apple has already gone on record saying the 12w will charge the 3rd gen iPad slightly faster.   Same way the 10w charges the iPhone slightly faster than that little charger it comes with.  This info is common knowledge. 

    Please identify this "record."

  • Semp1 Level 1 Level 1 (10 points)

    Do you even own a 10w charger or an iPad.  There's no clarification necessary besides the tons of "unofficial" news sources and most importantly your own eyes. 

  • Philly_Phan Level 6 Level 6 (11,010 points)

    I previously stated that my 10W charger does not charge my iPod any quicker than my 5W charger.

     

    Please identify where "Apple has gone on record."  That was your statement, not mine.  Unofficial news sources don't mean squat.

  • Semp1 Level 1 Level 1 (10 points)

    Well then you're either lying for the sale of argument or just not watching it.

  • Philly_Phan Level 6 Level 6 (11,010 points)

    Semp1 wrote:

     

    Apple has already gone on record saying the 12w will charge the 3rd gen iPad slightly faster.   Same way the 10w charges the iPhone slightly faster than that little charger it comes with.  This info is common knowledge. 

    Speaking about liars, I'm still waiting for you to advise just where is the record of Apple's statement.

  • pluviose Level 1 Level 1 (85 points)

    deejaydlite wrote:

     

    Im wondering if any body has noticed the same as me, charging my iphone 4 and ipad 3 on my Macbook Pro (mid 2010) is much faster then using power adapters.

    That's interesting. Same here, not sure if / how much faster but at least the same time while the macbook (2010 also) was asleep.

    I started to charge from the mains though  since I read everywhere that it's better.

  • crh24 Level 3 Level 3 (920 points)

    Philly_Phan wrote:

     

    I previously stated that my 10W charger does not charge my iPod any quicker than my 5W charger.

     

    A brief history lesson...

     

    In the 'old days' (remember the All American Five? I do.) when power dissapation was not a major issue engineers didn't bother with power supply specifications per se. It just wasn't necessary.

     

    With the advent of semi-conductor technology power dissapation became a much larger issue and power supply designers began to design to more restricted power requirements.  It wasn't hard to do as discrete semi-conductors still could dissipate a relatively large amount of excess current in the form of heat without sustaining damage.

     

    As integrated circuits came into vogue it was suddenly very necessary to take into account current control in the power supplies particularly in the charging circuits.  It was relatively easy to destroy an IC by allowing too much current to pass through it.  Current limitation came into widespread use.

     

    Enter the current discussion.  Apple hardware engineers are smart.  They know exactly how much current is allowable in each of their devices--it is a design time specification that may or may not be modified during initial modelling.  Apple engineers design their devices with hardware limiting the maximum current when proper voltages are applied.  When that current is reached the device will not charge any faster regardless of the wattage of the charger.

     

    In the case of your iPod, the 5W charger supplies the maximum current necessary and you could plug a 1kw charger of the proper voltage into it and it would still charge at the same rate as it does with the 5W charger.

     

    Therefore, your statement, while true, is essentially meaningless with regard to the question of whether an iPad will charge at a higher rate with a 12W charger than a 10W charger.  The only answer is "Does the 10W charger reach the maximum charge current of the iPad?"  If so then the 12W charger will not charge any faster than the 10W charger.  If the 10W charger does not reach the maximum charge current of the iPad then the 12W charger will charge at a faster rate than the 10W charger.

     

    Subjective evidence says it will.  Personally, I don't know and I would never trust the answer from someone who quotes Apple without further information.  Was the info from an engineer or a marketing dweeb, etc.?

     

    While I do have the tools necessary to actually determine the answer I haven't bothered as the difference between 10W and 12W is not important enough to me.

    iPhone 5, iOS 6, iPad '3' 64GB AT&T (2), iPad 2
  • deggie Level 8 Level 8 (44,840 points)

    I use the iPad charger (10 watt) to charge my iPhone and Nano's when I am in a hurry. It is faster.

     

    The fact that 9-to-5 quoted an Apple representative but did not give a name does not mean the quote is false.

     

    If I get teh 12w charger I'll do a comparison.

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