Original 48V controller designed for selected Joyor Y Series electric scooters. This controller regulates power delivery, acceleration and motor performance, ensuring smooth operation and reliable riding characteristics. Designed as a direct replacement for faulty or damaged controllers, it restores communication between the battery, motor and display while maintaining factory functionality and safety features. Compatibility: Joyor Y Series: Y5S / Y6-S / Y10 DGT / Y10 Available versions: V1: Speed limited to 25 km/h, up to 35 km/h (18Ah) – for Y5S / Y10 standard V2: Speed limited to 25 km/h, up to 35 km/h (23Ah) – for Y6-S and specific Y10 units V3: Speed limited to 25 km/h (18Ah) – only for Y10 DGT V4: Speed limited to 50 km/h (18Ah) – only for Y6S Important: Please verify your scooter version and battery configuration before purchase. Original Joyor electronic component with fast EU shipping available.