1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Doinal Electric Twist Throttle. This universal throttle is designed for electric vehicles operating on 12V-72V electrical systems, including e-bikes, scooters, motorcycles, ATVs, and UTVs. It features a 3-speed control and a reverse function for enhanced maneuverability. Please read this manual thoroughly before use to ensure safe and efficient operation.
Figure 1.1: Doinal Electric Twist Throttle with 3-speed and reverse function.
2. Safety Information
Always prioritize safety during installation and operation. Failure to follow these instructions may result in injury or damage to the product or vehicle.
- Professional Installation Recommended: If you are unfamiliar with electrical systems, seek assistance from a qualified technician for installation.
- Power Disconnection: Always disconnect the vehicle's power source (battery) before attempting any installation, maintenance, or wiring.
- Voltage Compatibility: Ensure the throttle's voltage range (12V-72V) is compatible with your vehicle's electrical system.
- Secure Connections: Verify all wiring connections are secure and properly insulated to prevent short circuits.
- Handlebar Fitment: Ensure the throttle fits securely on standard 22mm handlebars. Loose components can affect control.
- Environmental Protection: While the throttle is designed to be weather-resistant, avoid prolonged exposure to extreme weather conditions.
3. Package Contents
Upon opening the package, please verify that all components are present and undamaged:
- 1 x Handlebar throttle (with integrated 3-speed and reverse switches)
Figure 3.1: Product features and components.
4. Installation
The Doinal Electric Twist Throttle is designed for true plug-and-play installation, minimizing the need for cutting or splicing wires if your controller has compatible spade female connectors.
4.1 Handlebar Mounting
- Ensure your vehicle's handlebars are standard 22mm (7/8 inch) in diameter.
- Carefully slide the throttle onto the right side of the handlebar.
- Secure the throttle firmly in place using any provided clamps or screws, ensuring it does not rotate freely.
Figure 4.1: The throttle is designed to fit standard 22mm handlebars.
4.2 Wiring Connections
The throttle includes a 150 cm (approx. 59 inch) wiring harness with pre-attached connectors. Identify the corresponding connectors on your vehicle's controller.
- Throttle Connection: Connect the 3-pin throttle connector to your controller's throttle input. The wires are typically: +5V (red), GND (black), and Throttle Signal (green).
- 3-Speed Control: Connect the 3-pin speed control connector. The wires typically correspond to Low Speed (brown), Mid Speed (purple), and High Speed (white).
- Reverse Function: Connect the 2-pin reverse connector. The wires typically correspond to Reverse (blue) and Forward (yellow).
Note: The color of the 3-speed and reverse switch buttons may vary (red or black) but functionality remains the same.
Figure 4.2: Detailed wiring interface for throttle, 3-speed, and reverse functions.
Figure 4.3: Example of wiring connections for the 3-speed throttle to a controller.
4.3 Installation Video
Video 4.1: Demonstration of the electric throttle with 3-speed and reverse functions. This video provides a visual overview of the product and its features, which can aid in understanding its installation and operation.
5. Operating Instructions
Once installed, the throttle provides intuitive control over your electric vehicle's speed and direction.
5.1 Speed Control
- Acceleration: Twist the throttle grip towards you to increase speed. Release to decrease speed.
- 3-Speed Settings: Use the dedicated 3-speed switch (typically a button or rocker switch) to cycle between Low, Medium, and High-speed modes. Select the appropriate speed for your riding conditions and desired performance.
5.2 Reverse Function
- Activate the reverse function using the designated switch. This allows for improved maneuverability in tight spaces or when parking.
- Always ensure your surroundings are clear before engaging reverse.
Figure 5.1: The 3-speed and reverse control buttons.
6. Maintenance
Regular maintenance ensures the longevity and reliable performance of your twist throttle.
- Cleaning: Wipe the throttle clean with a damp cloth. Avoid using harsh chemicals or abrasive cleaners that could damage the ABS plastic housing or rubber grips.
- Connection Checks: Periodically inspect all wiring connections to ensure they remain secure and free from corrosion.
- Cable Integrity: Check the wiring harness for any signs of wear, fraying, or damage. Replace if necessary.
- Grip Condition: Ensure the high-quality rubber grips are not worn or damaged, maintaining a secure hold.
Figure 6.1: Throttle construction from ABS+PVC and high-quality rubber.
7. Troubleshooting
If you encounter issues with your throttle, refer to the following common troubleshooting steps:
- Throttle Not Responding:
- Check all wiring connections for looseness or damage.
- Verify the vehicle's power supply (battery) is charged and connected.
- Ensure the throttle's voltage range is compatible with your controller.
- Inconsistent Speed Control:
- Inspect the 3-speed switch for proper function.
- Check for any obstructions preventing smooth throttle rotation.
- Reverse Function Not Working:
- Verify the reverse switch wiring connection.
- Ensure the reverse switch itself is not damaged.
If problems persist after following these steps, please contact customer support.
8. Specifications
Detailed technical specifications for the Doinal Electric Twist Throttle.
Figure 8.1: Key parameters of the twist throttle.
| Feature | Detail |
|---|---|
| Vehicle Service Type | Bike, Scooter, Motorcycle, ATV |
| Color | 3 SPEED THROTTLE (Button color may vary) |
| Brand | doinal |
| Material | Acrylonitrile Butadiene Styrene (ABS), PVC, High-Quality Rubber |
| Product Dimensions (L x W) | 6"L x 4"W (approx. 152mm x 102mm) |
| Item Weight | 0.38 kg |
| Unit Count | 1 Count |
| Included Components | Handlebar throttle |
| Item Highlight | Forward and Reverse Accelerator |
| Waterproof Rating | IPX3 |
| Approval | ROHS |
| Working Voltage | 5V |
| Output Voltage | 0.8-4.2V |
| Operating Temperature | -20°C to 60°C |
| Wire Tension | ≥130N |
| Spin Intensity | ≥9N.M |
| Durability | 100,000 mating cycles |
| Fitting Depth | 107mm |
| Pulling-out Force | ≥150N |
Figure 8.2: Physical dimensions of the twist throttle.
9. Warranty Information
The Doinal Electric Twist Throttle comes with a 2-month warranty from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage resulting from improper installation, misuse, accidents, or unauthorized modifications. Please retain your proof of purchase for warranty claims.
10. Customer Support
For any questions, technical assistance, or warranty claims, please contact Doinal customer support through the platform where you purchased the product. Provide your order number and a detailed description of the issue for prompt assistance.
You can also visit the official Doinal store for more information and related products: Doinal Store