The iphone11's fast charge supports up to 18W. The official 5W charging head and USB-A to Lightning charging cable are only standard with 5V\/1A, and 18W PD fast charging head and USB-C to Lightning fast charging cable need to be purchased separately. The battery capacity of the iphone11 is 3110mAh, and the use of fast charging can effectively improve the charging speed.
The iphone11 supports up to 18w fast charge. It can be charged up to 50% in 30 minutes, and it is necessary to purchase a separate 18w fast charger to achieve fast charging.