In fact, flash charge is a type of fast charge, which is a unique name used by mobile phone manufacturers in order to highlight the advantages of their fast charge technology. Charging speed is not the same, flash charging is faster; The voltage of charging is not the same, flash charging is low voltage fast charging, fast charging is high voltage fast charging; The heating degree of the mobile phone is not the same when charging, the flash charging temperature is low, and the fast charging temperature is high; The security of the mobile phone is not the same when charging, and the flash charge is safer.