There is a difference between 18-watt charging head and flash charging, and different fast charging protocols use different charging heads.
General flash charge refers to the VOOC flash charge technology independently developed by OPPO, and applied for 18 patents, which increases the fastest charging speed by more than 4 times, and has impeccable intelligent all-end five-level protection, which is the fastest and safest mobile phone charging technology in the world.
For example, although OPPO's VOOC is compatible with the PD3.0 fast charge protocol, its Super VOOC2.0, which supports 65W of charging power, is still a private protocol. If the PD3.0 protocol charger and ordinary Type-C data cable are used to charge OPPO mobile phones, the charging power is generally about 15W.
Therefore, the 18-watt charging head can achieve the effect of fast charging with their respective charging protocols. OPPO VOOC flash charge uses OPPO's own charging head and cable for the fastest charging method.