iPhone 4 not charging to 100%

Discussion in 'iPhone Tips, Help and Troubleshooting' started by OrangeCuse44, Aug 26, 2010.

  1. OrangeCuse44 macrumors 65816

    OrangeCuse44

    Joined:
    Oct 25, 2006
    Location:
    Long Island, NY
    #1
    I originally thought this was a battery calibration issue when I first got my iP4, so I drained the battery completely and charged for 8 hours. My nightly charge routine is sync, turn off while still docked to Mac, then either close the lid to the Macbook or leave it open. Sometimes I'll wake up to 100% charged, other times it could be 80%. Is the iP4 not designed to charge when turned off and docked to a computer or is there another issue?
     
  2. celticpride678

    Joined:
    Feb 15, 2009
    Location:
    Boston, MA
    #2
    The last 20% of the charge takes the longest. Could that be it?
     
  3. OrangeCuse44 thread starter macrumors 65816

    OrangeCuse44

    Joined:
    Oct 25, 2006
    Location:
    Long Island, NY
    #3
    Don't think so. Its plugged in for 7-8 hours. I used 80% as a general number. Last night for example, I plugged it in at 40% and awoke to it only being at 68%.
     

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