Using Samsung fast charging box?

It's fine, but I doubt it will charge faster.

 

Basically, the phone is capable of charging faster if the A/C adapter is able to provide more power. The iPad charger can push 10w or 12w(depending on the iPad charger) instead of 5w.

I bought one of these a few weeks ago and it's awesome:

https://www.anker.com/products/A2123113

 

It will not charge faster. Fast Charging is a feature that the processor must have, in addition to the charging block, in order to take advantage of the quick charge.

Using a 2.1A charging brick will yield you slightly faster charge times (like one that comes with a tablet, like an iPad), but don't expect adaptive fast charging speeds like you get with a device with a Snapdragon CPU.

 

I don't know anything about the charger you have, and I'm not fully versed on how quickcharge 2.0/3.0 works.

Why don't you plug it in and try it?

 

Pretty sure when he says charge faster he means how the iPad 10W charger charges faster than the 5W charger
He isn't talking about Quick Charge

 

Don't worry about it. The phone won't draw more current than it can handle.