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  • 1 Post By IAmSixNine
  1. Thread Author  Thread Author    #1  

    Default Details on how the Note 3 knows to draw 2 Amps (instead of 0.9) when charging

    I've looked through as many charging threads as I could find. When you short the data pins (that's the 2 center pins, right?) The Note 3 knows it's a higher amp charging rate but how does it know if it's a 0.9 USB 3 port or a 2 A wall charger? Thanks. I'm trying to get a 4 A capable USB solar charger to provide the 2 A charging rate.
  2. #2  

    Default Re: Details on how the Note 3 knows to draw 2 Amps (instead of 0.9) when charging

    The note its self doesnt know what your plugging it into.
    It only knows to draw a maximum amount of 2A of power.
    If you plug it into a device that only puts out 1A then the device will only get what the device can put out.
    It does have current limiting technology so if you use a 4A source the phone is designed to max out at 2A. As long as your source has regulated current output and protected from surges you can use a 4A source.
    Some cheaper made chargers have a tendency to have a voltage drop as the amount of current drain gets higher.
    SpookDroid likes this.
  3. #3  
    FBA
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    Default Re: Details on how the Note 3 knows to draw 2 Amps (instead of 0.9) when charging

    What he said!
    Converted lifetime BlackBerry user, now on Samsung Note 3...
    Bye bye Blackberry, forever.

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