Over 3 times faster than the standard charger, the MiniMotors fast charger will get you back on the road in no time. Please verify your charger voltage before purchasing. The 66.4 volt fast chargers will work will all 60 volt Dualtron and Speedway scooters, the 58.1 volt fast chargers will work with all 52 volt Dualtron and Speedway scooters. They are not interchangeable.