This paper describes the design and characteristics of the lithium-ion electric scooter battery charger. Depending on the state of charge (SOC) of the battery, the terminal voltage varies from 30V to 58.8V. Under the wide operating voltage range of the battery, the charger is designed to operate in constant voltage (CV) and constant current (CC) modes to meet the demands of the Battery Management System (BMS). In CC Mode, the charger delivers the current ranging from 4A to 12A in Full Frequency (FF) switching conditions. In CV mode, the charger can maintain the terminal voltage as 58.8V in FF switching conditions. The FF operation of the converter enables the battery to absorb only the DC current without any peak current pockets, reducing the thermal stress of the battery. The charger is a high-line design with AC input varying from 180V to 280V, 45Hz to 60Hz. Performance characteristics of the Medium (720W) power charger prototype are presented.