Eco Fly S85 Controller Specially designed for the Eco Fly S85 electric scooter to ensure perfect compatibility Provides smooth acceleration, stable speed control, and responsive braking performance Easy plug-and-play installation with pre-attached wires and labeled connectors Features built-in protection against overheating, short circuits, overvoltage, and overcurrent Improves battery performance and motor efficiency with optimized power management Sturdy aluminum alloy casing offers excellent heat dissipation and protection from dust and moisture OEM-grade replacement part for restoring original scooter functionality Compatible with 36V battery systems (verify your scooter model before purchase) Includes 1x Eco Fly S85 Controller with wiring harness Compatibility : Fits any eco fly model or replacement for any electric scooter has same controller Package content : 1 x controller