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

Answer 1

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.

Answer 2

as long as the port matches and the same voltage

Answer 3

Actually, it depends on the connecting port. 

Answer 4

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.

Answer 5

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

Answer 6

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 .

Answer 7

Actually, it depends on the connecting port. 

Answer 8

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

See the following webpages for more information about USB types.

Source(s): https://www.extremetech.com/computing/115251-how-u... https://www.cmd-ltd.com/advice-centre/usb-chargers...

Answer 9

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.

Answer 10

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