How does iphone charging work?

Discussion in 'iPhone Accessories' started by jdmz, Jun 5, 2012.

  1. jdmz macrumors newbie

    Joined:
    Aug 2, 2010
    #1
    Does the phone control when to stop charging or does the charger? So.. when the battery is full, and the charger is defective, charging will not shut off? I got a 2A car charger that I might not trust if it's controlled by the charger..
     
  2. takeshi74 macrumors 601

    Joined:
    Feb 9, 2011
    #2
    Controlled by the device. The device will pull what it needs. See also all prior threads on chargers as this is a very common topic. A defective charger is a charger that doesn't charge. Why would you attempt to use one?
     
  3. Ray- macrumors regular

    Ray-

    Joined:
    Apr 18, 2012
    #3
    Definitely controlled by the phone. The charger can't "push" more charge to the phone than the phone is requesting. That is, unless something goes explosively wrong.
     

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