18w flash charge is a fast charge of low voltage and high current. Oneplus's DASH flash charge is similar to OPPO's flash charge, and in the early years, OnePlus had a phone that charged at 5v4.5A, with 5V2A as the standard, the current is increased. The flash charge cost of high voltage and low current is relatively high, and the ordinary data line can not meet its fast charge needs. Take Huawei mate20pro as an example, which is known as super fast charging, and the charging speed is 40W, that is, 10V4A.
It's still better with a 40 watt fast charge, which is much faster than an 18 watt flash charge.
400,000 fast charging will be better than 180,000 flash charging, 400,000 fast charging speed will be faster than 180,000 flash charging speed to more than twice
The 40w will be fine. The 18's not that fast
This must be a 40w. 40w quick