Your device may have fast charging technology by default, but the accessories you use to charge it can also affect how fast or slow it charges. Cables differ in terms of charging speed, durability, length, price, and other features. I am going to tell you how to identify a fast charging cable. 
The amount of power that the cable can transmit determines the charging speed. This is proportional to the size of the wires in the cable. It is just physics. The current carrying capacity of the wire is limited, so the thicker the wire, the more current can be carried through it.
A regular USB cable contains a standard wire that can carry a current of about 0.5A, while a fast-charging cable can carry a higher current (2A or more)
To identify a fast charging cable, you also need to look at several other factors. Here are some easy ways to do it.
1、Look at the label/description Same cable manufacturers make it very easy for customers to identify the type of cable they buy. When choosing a cable, look for something in the label or description that indicates that the cable supports fast charging. 
Amperage is another item to look for in a cable to see if it is a fast-charging cord. If you need to buy a fast charging cable, make sure it is labeled to 2A or the specific current your smartphone requires.
The fast-charging cable contains a thick wire inside. Therefore, there is a common misconception that a thicker cable will charge faster than a thinner one. While this can be accurate, it is not always a good technique for finding a fast-charging cable. However, for obvious reasons, you should avoid buying fragile cables.
4、Buy from an authorized store with brandsBranded products considers quality as their brand value. It is more trustful.
