I read a lot on forums that people have trouble charging their iPhone 5 in a fast way.
How to solve this?
There are several solutions:
- Use/Buy a 12W iPad charger. It has higher power and charges the iPhone 5S faster.
- Use a dedicated charger like the iClever 15W charger.
- Another viable options is to use the iXCC 15W charger.
As you can see, the maximum number of Watts a charger usually has is 15W. This is because this the maximum amount of energy that a USB device can handle for charging.
Obviously, the 15W options provide the best performance as they are the highest power.
If you have questions, please let me know in a comment!