I think the oppoa11 supports dual flash charging.
Flash charge is a fast charging technology that can make the mobile phone fully charged in a short time, independently developed by OPPO, and applied for 18 patents, the fastest charging speed increased by more than 4 times, and has impeccable intelligent all-end five-level protection, is the fastest and safest mobile phone charging technology in the world. Flash charging technology is based on the mode of low voltage and high current, under the premise of fixed power, by enhancing the voltage or current to shorten the charging time.