Support Car USB not charging Nexus

Discussion in 'Android Devices' started by aznkiller908, Feb 1, 2012.

  1. aznkiller908

    aznkiller908 Member
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    So I have a dual USB port charger in my car and it does not charge my Nexus. I have tested and the charger does charge for my ipod touch when plugged it. Could it be the 3rd party usb wire I am using? Because I had no problems charging my OG droid before. Any input would be appreciated since I need to charge my phone while at school since I heavily use my phone during my 2-3 hour breaks.
     

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  2. stenzor

    stenzor Well-Known Member
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    Sounds like something is wrong with either the charger or the cord indeed. Maybe the OG droid required less power so the charger worked ok? Get a car charger that outputs at 1 Amp, then your phone will charge at AC speeds.
     
  3. aznkiller908

    aznkiller908 Member
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  4. Crashumbc

    Crashumbc Well-Known Member
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    Amazon has them much cheaper...

    Note: to check if a charger is charging at 1 amp

    plug in your phone and open up the battery menu under settings

    at the top if it says

    Charging (USB) its charging at .5 amps
    Charging (A/C) its charging at 1 amp
     
  5. Unforgiven

    Unforgiven -.. --- - / -.. .- ... ....
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    Not totally true. I have my GNex plugged into an OG Droid charger that runs at .85 amps and it says Charging (A/C):thinking:. Maybe > .5 amps it gives the AC message as USB only charges at .5.
     
  6. Crashumbc

    Crashumbc Well-Known Member
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    True, I should of qualified my answer with the limitation of the charger. If the charger doesn't output 1 amp the phone won't charge at 1 amp...

    The A/C - USB indicator is a "USB SPEC" thing. to keep devices from drawing to much power, if its plugged into a USB source the device will self limit to (.5 amp)


    My understanding, is the way the device tells is it checks the middle 2 pins, if there shorted it, it knows its connected to a power source that can charge at higher then .5 amps.(and shows A/C)

    If you google you can find many examples of people that have "hacked" chargers that aren't wired properly.
     
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  7. Unforgiven

    Unforgiven -.. --- - / -.. .- ... ....
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    Neat, learned something new today! :D
     
  8. yoyohere2

    yoyohere2 Well-Known Member
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    use the USB cable that came with the phone. Then you can tell if it is the USB cable or the car charger.
     
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