1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Tbest Electric Throttle Control Handlebar Grip with LED Display. This product is designed for electric scooters, bicycles, tricycles, and other electric vehicles operating within a 12V-99V voltage range.
Package Contents
- 1 x Right Handlebar (Throttle Control with LED Display)
- 1 x Left Handle Grip
- 1 x 2-meter Wiring Harness
Figure 1: Overview of the Tbest Electric Throttle Control Handlebar Grip set, showing the right-hand throttle with integrated LED display and the matching left-hand grip.
2. Specifications
| Feature | Specification |
|---|---|
| Material | Aluminium Alloy + Rubber |
| Color | Blue |
| Package Weight | Approx. 0.3 Kilograms (285g) |
| Wire Length | Approx. 2 meters (78.7 inches) |
| Speed Control Type | 3-gear switch (High, Middle, Low speed) |
| Compatibility (Vehicle) | 12V-99V Electric Bicycles, Scooters, Tricycles, and other Electric Vehicles |
| Handlebar Diameter Fitment | 22.2mm |
| Working Voltage (Throttle) | DC 0.8-4.2V |
| Working Voltage (Battery Indicator) | 12-84V (Automatic identification) |
| Battery Compatibility | Lithium battery, lead-acid battery, etc. |
3. Setup and Installation
Proper installation is crucial for the safe and correct operation of your electric throttle. Ensure your vehicle's handlebar has a 22.2mm diameter for proper fitment.
Installation Steps
- Remove existing handlebar grips.
- Slide the new left handle grip onto the left side of the handlebar.
- Slide the right handlebar (throttle control) onto the right side of the handlebar. Secure it firmly.
- Proceed with the wiring connections as detailed below.
Figure 2: Exploded view illustrating the components of the throttle control and grip for installation.
Wiring Diagram and Connections
Caution: Incorrect wiring can lead to damage to the Hall sensor or LED display. If you are not a professional, please pay close attention to the wire order.
- Yellow Wire: Power positive. Connect to the battery's positive terminal (e.g., +24V, +36V, +48V).
- Red Wire: Throttle positive (+5V).
- Green Wire: Throttle signal wire.
- Black Wire: Throttle negative.
For 3-gear speed control (if your controller supports it):
- White Wire: High speed.
- Blue Wire: Middle speed (shared line).
- Brown Wire: Low speed.
Note: The 3-gear speed control function will only work if your electric vehicle's controller supports speed regulation.
Figure 3: Detailed wiring diagram showing the connections for power, throttle, and speed control wires.
4. Operating Instructions
Throttle Control
The right handlebar functions as the throttle. Twist the grip to control the speed of your electric vehicle. The throttle provides a smooth and responsive acceleration.
LED Display for Battery Level
The integrated LED display shows the real-time voltage value, allowing you to accurately determine the remaining battery charge. The system automatically identifies voltages between 12V and 84V.
Figure 4: Close-up view of the LED display, which shows the current battery voltage.
Interpreting Battery Voltage
Refer to the following table to understand the battery level based on the displayed voltage. The maximum voltage indicates a full charge, while the minimum voltage indicates an exhausted battery.
| Nominal Voltage | Max Voltage (Full) | Min Voltage (Empty) |
|---|---|---|
| 12V | 12V | 9V |
| 24V | 29V | 21V |
| 36V | 42V | 29V |
| 48V | 54V | 39V |
| 60V | 72V | 49V |
| 72V | 84V | 60V |
This feature helps prevent unexpected power loss during travel and assists in assessing the health of your lithium battery.
Speed Gear Switch
The throttle includes a 3-gear switch (High, Middle, Low) to adjust the speed of your electric vehicle. This function requires your vehicle's controller to support speed regulation for it to be effective.
5. Maintenance
To ensure the longevity and optimal performance of your Tbest Electric Throttle Control Handlebar Grip, follow these general maintenance guidelines:
- Keep the grips clean and free from dirt, dust, and moisture. Use a soft, damp cloth for cleaning.
- Regularly inspect the wiring for any signs of wear, fraying, or damage. Ensure all connections are secure.
- Avoid exposing the product to extreme temperatures or direct sunlight for prolonged periods.
- Do not use harsh chemicals or abrasive cleaners on the grips or LED display.
6. Troubleshooting
If you encounter issues with your electric throttle, refer to the following common problems and solutions:
- Problem: The 3-gear speed switch has no effect.
Solution: This function requires your electric vehicle's controller to support speed regulation. If your controller does not have this capability, the switch will not function. - Problem: The throttle or LED display is not working, or there is a burning smell.
Solution: Immediately disconnect power. This often indicates incorrect wiring. Review the wiring diagram in Section 3 and ensure all connections are made correctly. Incorrect wiring can cause damage to the Hall sensor or LED tube. If unsure, consult a professional. - Problem: Inaccurate battery voltage reading.
Solution: Ensure the yellow power positive wire is correctly connected to the battery's positive terminal. Verify that the battery itself is functioning correctly and is within the 12V-84V operating range.
7. Warranty and Support
Specific warranty information for the Tbest Electric Throttle Control Handlebar Grip is not provided in this manual. Please refer to your purchase documentation or contact the retailer/manufacturer directly for details regarding warranty coverage and customer support.
