All eBikes come with a charger, only purchase if you want an extra charger or need a replacement. Description: Not universal; USA plug, only applicable to specific models of VTUVIA. MODEL: KYLC165V55M INPUT: 110V-240V-3.0A MAX 50-60HZ OUTPUT: 54.6V--3.0A Note: The 3A charger charges faster than the 2A charger. Before purchasing a charger, use a multimeter to test the battery voltage to determine if it's a battery or charger problem. All accessories are non-refundable and non-exchangeable. Serious Reminder: Please use the VTUVIA dedicated charger to charge, and refrain from using other products. Connection Order: "Bike First, Wall Last" This is the most important rule to prevent dangerous electrical arcs at the connector. Disconnection Order: "Wall First, Bike Last" When charging is complete (the charger light usually turns green), reverse the connection order.