The three common charging methods for electric motorcycles are constant current charging, constant voltage charging, and fast charging. Constant current charging means that the current is constant during the charging process. In this charging method, the current in the charging process is very small, so the charging time is longer. Our family generally uses this method. Constant voltage charging refers to the amount by which the voltage remains constant during the charging process. This charging method is relatively fast. Fast charging，this charging method allows the electric motorcycle to quickly complete the charging, but because the charging current and voltage in this method are not fixed, it has a certain impact on the battery.