Are USB-2.0 phones compatible with USB-3.0 chargers?

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  • 1 month ago

    Indeed, USB 3.0 in reverse is viable—which means it's intended to work with more seasoned USB variants including USB 2.0 and USB 1.1. You can plug a USB 2.0 gadget into a USB 3.0 port and it will consistently work, however, it will just run at the speed of the USB 2.0 innovation.

  • Anonymous
    1 month ago

    as long as the port matches and the same voltage

  • Anonymous
    1 month ago

    Actually, it depends on the connecting port. 

  • 1 month ago

    Yes, USB 3.0 backwards is compatible—meaning it's designed to work with older USB versions including USB 2.0 and USB 1.1. You can plug a USB 2.0 device into a USB 3.0 port and it will always work, but it will only run at the speed of the USB 2.0 technology.

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  • Steven
    Lv 4
    1 month ago

    Yes, its compatible but they are held to the 2.0 limitations of transfer rates and power.

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  • garry
    Lv 6
    1 month ago

    no amperage is too high , use your computer to charge it . computers have a universal amperage , wall chargers are fixed at 5 to  10 amps , usb 2 is 2 amps maximum and usb 3 is 5-10 amps .

  • 1 month ago

    Actually, it depends on the connecting port. 

  • 1 month ago

    If your phone is less than about 10-15 years old, absolutely YES.

    See the following webpages for more information about USB types.

  • 1 month ago

    Impossible to answer.  No way to know whether the USB 3.0 charger is designed so that it is backwards compatible with a USB 2.0 device.  So or, some or not.

    A USB 2.0 phone can not use a USB 3.0 charger in its native format.  But many 3.0 chargers are designed so that they can detect a 2.0 device and work as if they are a 2.0 charger.

    No way to predict if that charger you have is designed to do that.

  • 1 month ago

    I would say yes, but your charge rate will suffer due to the difference in amperage

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