Why Is My Iphone 8 Charging So Slow. Here are a few potential reasons why you have to deal with long charging times as well as some simple solutions. If you want to charge your iPhone faster evidence suggests that if you turn the phone off so it doesnt waste energy while charging that will shorten the charging time.

How much free data storage space is left on your iPhone 8. Most of the time when your iPhone 8 is slow there are software issues bogging it down. If you use a non-original adapter this will obviously reduce the charging speed of the phone.
It has to have and maintain at least 3GBs or greater free data storage space.
The following are things you can try to fix your iPhone 8 thats charging very slowly. If you continue to notice no difference in the charging speeds please feel free to Contact Apple Support for further assistance and diagnostics. In Settings app under General settings Reset panel at the right bottom of the list Reset All Settings. Plug your adapter directly into wall socket and use authentic cable i would prefer Anker Powerline plus or Amazon Basic Lightning Cable but Ankers cable is more durable.
