The charging mode of the OPPO K9 mobile phone is super flash charge, which is OPPO's patented fast charge technology, which can achieve up to 65W fast charge power, so that the battery can be quickly filled in a short time. The super flash charge technology adopts the design of dual battery chip and multi-battery chip, which can realize the fast charging and security of the battery. In addition, the technology also supports intelligent adjustment of the charging speed, effectively reducing the heat generated during charging, making the phone safer and faster to charge.