1. Safety Information
- Protective equipment should be worn. Not to be used in traffic.
- Only for domestic use.
- Not suitable for children under 36 months.
- Modification Prohibited: Do not attempt to modify, reprogram ("tune"), or bypass any safety limits of the controller. Doing so voids any warranty, can damage the motor and battery, and significantly increases the risk of accident or fire.
- Disclaimer: Please mind potential fire risk and strictly follow the instruction manual for charging and storage.
2. Product Overview
This Controller is the central electronic processing unit of your electric scooter. It regulates power delivery from the battery to the motor based on input from the throttle, brake sensors, and other components, controlling speed, acceleration, and braking regeneration.

3. Specifications and Usage Limitations
- Voltage & Current Rating: This controller is designed for a specific voltage (e.g., 36V, 48V) and current rating. Never connect it to a battery with a different voltage, as this can cause immediate and catastrophic failure, fire, or explosion.
- Motor Compatibility: It must be used only with a brushless DC (BLDC) hub motor whose specifications (phase, hall sensor configuration) are compatible with the controller.
- Thermal Limits: The controller has operational temperature limits. Avoid continuous high-load operation (e.g., climbing long, steep hills) which may cause overheating and automatic shutdown or permanent damage. Ensure it is installed in a location with adequate ventilation.
- Moisture & Environment: This component is not waterproof unless specified with a certified IP rating. It must be protected from direct exposure to water, rain, snow, and high humidity. Do not install it in areas prone to splashing or submersion.
- Origin: Mainland China
- High-concerned chemical: None
Controller Versions
The JOYOR S single motor controller is available in two main versions: Standard and German Standard. Please verify the label parameters to ensure compatibility with your scooter.




4. Installation and Connection
- Preparation (Safety First): Ensure the scooter is completely powered off and the battery is disconnected. Wait at least 5 minutes after disconnection to allow any residual current to dissipate.
- Mounting: Securely mount the controller inside the scooter's deck or designated compartment using the provided screws or mounting brackets. Ensure it does not contact sharp edges, moving parts, or the battery. The metal heat sink (if present) should face an open area for airflow.
- Wiring Connection: Connect all cables in the following order, ensuring each connector is fully seated and locked:
- Battery: Connect the main power cables from the battery to the controller's battery input terminals, observing correct polarity (RED to Positive (+), BLACK to Negative (-)). Incorrect connection will destroy the controller.
- Motor: Connect the three thick phase wires (usually Yellow, Green, Blue) and the thinner hall sensor wires (5-pin connector) from the motor to the corresponding ports on the controller.
- Throttle, Brake Levers, Display: Connect the throttle, brake sensor, and dashboard/display unit cables to their designated ports.


5. Initial Operation and Testing
- Final Check & Power-On: Double-check all connections for correctness and security. Ensure no wires are pinched. Reconnect the battery. Power on the scooter. Do not apply throttle yet. Listen for any unusual sounds from the controller or motor.
- Initial Test: With the scooter lifted off the ground, gently apply the throttle. Observe if the motor spins smoothly and in the correct direction. If the wheel spins backward, power off and swap any two of the three motor phase wire connections on the controller. Test again. Confirm that the brake levers cut motor power as intended.
6. Maintenance
- Keep the controller clean and free from dust and debris.
- Regularly inspect all wiring connections for looseness or damage.
- Avoid exposing the controller to extreme temperatures or humidity.
- Ensure adequate ventilation around the controller, especially the heat sink, to prevent overheating.
7. Troubleshooting
- Motor spins backward during initial test: Power off the scooter immediately. Swap any two of the three thick motor phase wire connections on the controller. Re-test.
- No power to motor: Check all battery and motor connections for secure fit and correct polarity. Ensure the battery is charged.
- Erratic motor behavior: Verify all sensor and display unit connections are secure. Check for any pinched wires.
8. User Tips
- Always verify the controller label parameters to ensure compatibility with your scooter's version (Standard or German Standard) before installation.
- Confirm the controller's speed limit (e.g., 20 km/h throttled or unthrottled) before purchase and installation, as different versions exist.
9. Warranty and Support
For warranty information, technical support, or replacement parts, please contact your seller directly. Ensure you have your purchase details and product model number available.
A detailed user manual (PDF) is available for download, which contains further instructions and diagrams:





