[SOLVED] USB 3.0 Compatible Wall Adapter?

[MasterZoen]

I have to find a wall plug for a portable device that says it needs to be plugged into a USB 3.0 port to charge. USB power regulation is not something I understand very well, especially all the variants for USB 3 and nearly every wall wart I've looked at talks about Quick Charge and Smart IC but doesn't mention that it's USB 3.0 compatible. Does anybody have a cheap example of a USB 3.0 AC Wall plug for the USA? The device doesn't transmit data over USB so that's not an issue, but it does pull a lot of power over USB 3.

 

[cin19]

Take one you like from amazon.
https://www.amazon.com/usb-ac-adapter/s?k=usb+ac+adapter

 

[MasterZoen]

Take one you like from amazon.
https://www.amazon.com/usb-ac-adapter/s?k=usb+ac+adapter

So, what you are saying is that all wall adapters are USB 3.0 charge rate equivalent?

 

[hotaru.hino]

The USB 3.0 compatibility makes no sense to me other than it's hinting it needs higher current than what USB 2.0 can officially provide.

As long as you get something resembling a charger for higher end smart phones, it's fine.

 

[MasterZoen]

The USB 3.0 compatibility makes no sense to me other than it's hinting it needs higher current than what USB 2.0 can officially provide.

As long as you get something resembling a charger for higher end smart phones, it's fine.

Yeah, it's some cheap portable wireless speaker that my mom bought, and it doesn't seem to charge via USB 2, but it charged off of USB 3. Her laptop only has USB 2 and her phone charger doesn't have fast or smart charging. I'll get her one with fast charging and see if that works. Thanks a bunch.

 

[hotaru.hino]

I found that using a more powerful charger can speed up the battery charging speed, while using a less powerful charger will reduce the charging speed.
Therefore, if you use a newer charger to charge your old phone, the battery may not be able to withstand higher currents.

The battery is getting all the current it needs and no more from a charger that can provide more power. If it's charging slower, it's because the device assumes a slower charging rate to start and it can't negotiate a higher charging rate from the charger.