There are actually a few ways to charge your phone up fast to get it back to where it needs to be, even if your phone is ...
as discussed in the article "Why won't my iPhone charge?," you might need to restart your phone, check the Lightning cable for kinks and breaks, and ensure your power source is working.
The bad news is the repair might be costly ... if you’re using wireless charging for the iPhone. Your wireless charger probably requires a USB-C cable. Make sure it’s a good one.
The quickest way to charge your iPhone is with a fast charger: at least a 20-watt power adapter with a USB-C to Lightning or ...