Jx-100 Throttle Display Meter with Key Switch and 48V 18A Controller

1. Product Description

This kit includes the Jx-100 Throttle Display Meter with Key Switch and a 48V 18A Controller, designed as a replacement part for the EVERCROSS H5 Electric Scooter.

The Controller serves as 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.

The Jx-100 Throttle Display Meter provides essential ride information and includes a key switch for security and power control.

2. Safety Information

Please read all safety warnings and instructions carefully before installation and use to prevent injury or damage.

• ATTENTION: Protective equipment should be worn when operating the scooter. Not to be used in traffic.
• ATTENTION: This product is intended for domestic use only.
• ATTENTION: Not suitable for children under 36 months.
• 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.
• 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.

3. Setup and Installation

Proper installation is crucial for the safe and correct operation of your electric scooter. If you are unsure about any steps, please consult a qualified technician.

3.1. Preparation (Safety First)

1. Ensure the scooter is completely powered off and the battery is disconnected.
2. Wait at least 5 minutes after disconnection to allow any residual current to dissipate.

3.2. Mounting the Controller

3. Securely mount the controller inside the scooter's deck or designated compartment using the provided screws or mounting brackets.
4. Ensure it does not contact sharp edges, moving parts, or the battery.
5. The metal heat sink (if present) should face an an open area for airflow to prevent overheating.

3.3. Wiring Connection

Connect all cables in the following order, ensuring each connector is fully seated and locked:

6. Battery: Connect the main power cables from the battery to the controller's battery input terminals. Observe correct polarity: RED to Positive (+), BLACK to Negative (-). Incorrect connection will destroy the controller.
7. 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.
8. Throttle, Brake Levers, Display: Connect the throttle, brake sensor, and dashboard/display unit cables to their designated ports.

3.4. Final Check & Power-On

9. Double-check all connections for correctness and security. Ensure no wires are pinched.
10. Reconnect the battery.
11. Power on the scooter using the key switch on the throttle display. Do not apply throttle yet. Listen for any unusual sounds from the controller or motor.

3.5. Initial Test

12. With the scooter lifted off the ground, gently apply the throttle.
13. 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.
14. Confirm that the brake levers cut motor power as intended when activated.

4. Operating Instructions

Once installed and tested, the Jx-100 Throttle Display Meter and Controller manage the scooter's power and speed.

• Power On/Off: Use the key switch integrated into the throttle display to turn the scooter's power on or off.
• Acceleration: Gently twist the throttle grip to accelerate the scooter. The display will show current speed and other relevant metrics.
• Braking: Apply the brake levers to slow down or stop. The controller is designed to cut motor power when brakes are engaged.
• Display Functions: The display meter typically shows information such as speed, battery level, and possibly riding mode. Refer to your scooter's main user manual for specific display navigation and mode selection if available.

5. Maintenance

To ensure the longevity and optimal performance of your Jx-100 Controller and Throttle Display Meter, follow these general maintenance guidelines:

• Regular Inspection: Periodically check all wiring connections to ensure they are secure and free from damage.
• Cleanliness: Keep the controller and throttle display clean and free from dust, dirt, and moisture. Use a soft, dry cloth for cleaning.
• Environmental Protection: Avoid exposing the components to extreme temperatures, direct sunlight for prolonged periods, or harsh weather conditions (rain, heavy humidity).
• Ventilation: Ensure the controller's mounting location allows for adequate airflow to dissipate heat.
• Avoid Impact: Protect the components from physical impact or drops, which can cause internal damage.

6. Troubleshooting

If you encounter issues with your Jx-100 Controller or Throttle Display Meter, consider the following basic troubleshooting steps:

• No Power/Display Not Lighting Up:
  • Check if the key switch is in the 'ON' position.
  • Verify battery connection and charge level.
  • Inspect all power cables for loose connections or damage.
• Motor Not Responding to Throttle:
  • Ensure the throttle cable is securely connected to the controller.
  • Check if the brake levers are stuck or partially engaged, as this will cut motor power.
  • Perform the initial test procedure (Section 3.5) to check motor phase wire connections.
• Erratic Operation/Intermittent Power:
  • Inspect all wiring for any signs of fraying, pinching, or corrosion.
  • Ensure the controller is not overheating (check ventilation).

If the problem persists after these steps, it is recommended to consult a professional electric scooter repair service.

7. Specifications

8. User Tips

• Compatibility Check: The throttle/controller design may vary slightly between production batches. Always verify that the replacement part matches your scooter's existing throttle and controller before ordering to ensure compatibility.
• Careful Handling: Be mindful of light reflections and different displays, which may cause the color of the item in pictures to appear slightly different from the actual product.

9. Warranty and Support

For warranty information, technical support, or replacement parts, please contact the seller or the manufacturer directly. Keep your purchase receipt as proof of purchase.

A user manual in PDF format is available for download. You can reference it for additional details:

View User Manual (PDF)