iPad Do you need the transformer?

Discussion in 'iPad' started by puma1552, May 12, 2013.

  1. puma1552 macrumors 603

    Nov 20, 2008
    Curious, the iPad of course comes with an actual power brick/transformer and not just the little two prong outlet adapter the iPhone comes with.

    Presumably this is just to protect against power surges on a $500+ iPad, and the iPad can be charged just fine with the two prong adapter that comes with the iPhone?

    Just curious if there's a reason beyond the above for why the iPad comes with the power brick, and if it's safe to use just a regular two prong adapter to charge it.
  2. TEG macrumors 604


    Jan 21, 2002
    Langley, Washington
    The Apple Powerbrick provices the 1.2A required to charge the iPad at full speed. The iPhone cubes only provide about 500mA, so it will take much longer to charge the iPad.

  3. rockyroad55 macrumors 601


    Jul 14, 2010
    Phila, PA
    Have you tried using the regular two prong on a full size ipad?
  4. paulbennett95 macrumors 6502a


    Aug 30, 2012
    Long Island, NY
    I assume the iPad wall adapter is larger to accommodate the higher current it draws.
    Bigger battery needs a larger current to charge at the same rate as a smaller battery, so inversely, a smaller current (ie: the smaller adapter) will charge the iPads battery more slowly.
  5. takeshi74 macrumors 601

    Feb 9, 2011
    It's not a surge protector. It's a transformer as you yourself stated. See post 2 in this thread.
  6. Cartaphilus macrumors 6502a

    Dec 24, 2007
    Maybe I need acquire patience, but at my age life is too short to charge any iOS device with the little five-amp chargers that come with the iPhone. All the iPhones and iPads will draw current at the rate they can accept, up to the capacity of the transformer to deliver. Consequently, all your devices will charge faster using the highest wattage Apple iOS charger available. Theoretically, the five-watt charger will take 2.4 times longer to charge your device than the 12-watt charger provided for the retina iPad. Since it takes some six hours to charge the iPad 3 using the 12-watt charger, waiting the 14+ hours to recharge it with a 5-watt charger seems excessive.
  7. wolfpuppies3 macrumors 6502

    Jun 26, 2012
    Virginia, USA
    Just use the charger the device came with. Works great and quite quickly. If one insists on using the incorrect charger for lord knows what reason, expect poor charging rates.
  8. Mdwall macrumors member

    Oct 19, 2012
    Not to mention the fact that it will eventually burn out the charger if it isn't powerful enough to adequately charge the device.
  9. Night Spring macrumors G5

    Night Spring

    Jul 17, 2008
    No it won't. The device doesn't overdraw the charger, it just charges slowly.
  10. old-wiz macrumors G3

    Mar 26, 2008
    West Suburban Boston Ma
    I suspect that a real surge would cause havoc whether you are using the iPhone charger or the iPad charger.

Share This Page