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iPhone too much power?

Discussion in 'Prius c Audio and Electronics' started by Ronnie80, Nov 4, 2014.

  1. Ronnie80

    Ronnie80 New Member

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    When I plug my iPhone into the USB port sometimes a message pops up that says "The accessory uses too much power and will be turned off" Then a few seconds later my phone will stop charging, but then within a matter of seconds it will charge again and go on and off like this each time giving me the error message.

    2012 C- Three
     
    #1 Ronnie80, Nov 4, 2014
  2. xpcman

    xpcman Senior Member

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    which model iPhone do you have?
     
    #2 xpcman, Nov 4, 2014
  3. Ronnie80

    Ronnie80 New Member

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    iPhone 5
     
    #3 Ronnie80, Nov 4, 2014
  4. SwhitePC

    SwhitePC Active Member

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    the usb port is not and was not made for charging phones (or other things)

    buy a 12v accessory
     
    #4 SwhitePC, Nov 4, 2014
  5. Ronnie80

    Ronnie80 New Member

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    So what good is the USB port if you can't use it to charge your phone?
     
    #5 Ronnie80, Nov 4, 2014
  6. SwhitePC

    SwhitePC Active Member

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    a physical connection of your audio electronics to your car's audio system (there's this little option in the car's radio connection marked "usb")
     
    #6 SwhitePC, Nov 4, 2014
  7. bisco

    bisco cookie crumbler

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    i plug my music stick into it.
     
    #7 bisco, Nov 4, 2014
  8. kingnba6

    kingnba6 Active Member

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    i believe the usb in the car is rated at 500ma whereas the iphone needs at least 1000ma/1amp to charge. so the lower ma rating will cause the iphone to cycle thru the charging phase.
     
    #8 kingnba6, Nov 5, 2014
  9. trentofdestiny

    trentofdestiny Master Finagler

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    Are you using the Apple cable or a cheap one? I have a PiP and I've charged my iPhone 5 albeit really slowly. Best thing is to use Bluetooth and use an "iPad" 2.1 amp charger on the iPhone.
     
    #9 trentofdestiny, Nov 6, 2014
  10. HotDogWater

    HotDogWater Junior Member

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    I've charged an iPhone 5 and 6 with the USB port with no issues for over a year.
    I did see that message you're getting one time, but it went away after I unplugged the phone and plugged it back in.
     
    #10 HotDogWater, Nov 6, 2014
  11. GregP507

    GregP507 Senior Member

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    Someone in a previous thread said it was due to using a non-factory cable: Entunes and iPhone 4s | PriusChat

    I'd never try to charge my phone with the USB data port, it was designed for the iPod. I keep a USB flash-drive plugged into that port. I use a USB adapter in the lighter socket for charging. Bluetooth works well enough for playing music from the phone.
     
    #11 GregP507, Nov 6, 2014
    trentofdestiny likes this.
  12. Paul Schenck

    Paul Schenck Active Member

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    I agree, I-phones draw more amps than allowed with a standard USB. I use a plug in charger so I can get the 1amp + that is used when driving with WAZE or GPS app. Look for a tablet which normally use 1.2 ampere for the larger screens


    iPhone ?
     
    #12 Paul Schenck, Nov 7, 2014
  13. AliIzad

    AliIzad Member

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    Ensure you are using the genuine Apple cable; I had the same issue/message while trying to use a cheap knockoff cable; switched to the original cable and everything is fine. As for charging, my iPhone 5 is always plugged in via the USB port and it charges just fine; phone is always charged without any issues.
     
    #13 AliIzad, Nov 8, 2014
  14. KK6PD

    KK6PD _ . _ . / _ _ . _

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    The current draw on a properly working 5s is approx 0.49 Amps!! Unless there is some hig running in the
    No the phone only draws 1/2 amp, but that is the limit of that USB port.
    I have a USB cable with a Volt & Amp meter in it.
    Very handy!!

    OP you should use a different way to charge your phone!
     
    #14 KK6PD, Nov 8, 2014
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