The Genuine Segway Ninebot 71W AC Adapter 42V Model BCTA+71420-1700 OEM is a high-quality power adapter specifically designed for electric scooters. Made by the trusted brand Segway, this black adapter is suitable for models like the ES1, ES2, and ES4. With a reliable output of 42V, this charger ensures a steady and efficient power source for your electric scooter, allowing you to stay powered and ready for outdoor sports and adventures.