1. Introduction
The Bigstone C900E Intelligent Display LCD Electric Bike Monitor is designed to provide essential information and control for your electric bicycle. This updated part, compatible with Bafang LED TFT Kits, allows riders to monitor speed, battery level, assist levels, and other critical data, enhancing the riding experience. This manual will guide you through the installation, operation, and maintenance of your C900E display.
Important Note on Customization:
Since this product can be custom-made, it is crucial to confirm the specific parameters with your supplier immediately after purchase to ensure accurate matching with your electric bicycle. Failure to communicate specific requirements may result in the product being manufactured and shipped according to regular specifications.
2. Safety Information
- Always wear appropriate safety gear, including a helmet, when riding your e-bike.
- Ensure all connections are secure and properly insulated to prevent electrical shorts or damage.
- Do not attempt to open or modify the display unit, as this may void the warranty and pose a safety risk.
- Keep the display unit away from extreme temperatures, direct sunlight for prolonged periods, and excessive moisture.
- Regularly check the display and control unit for any signs of damage or wear.
3. Package Contents
Please verify that all items are present in your package:
- 1 x C900E LCD Display Unit
- 1 x Handlebar Control Unit
- Mounting Hardware (clamps, screws)
- Connection Cable (integrated with display or control unit)
Figure 1: C900E LCD Display and Control Unit
4. Setup and Installation
Follow these steps to install your C900E display:
4.1 Mounting the Display Unit
- Choose a suitable position on your handlebar for the display unit, typically near the center for optimal visibility.
- Attach the display's mounting bracket to the handlebar using the provided clamps and screws. Ensure it is securely fastened and angled for easy viewing.
Figure 2: Side view of C900E display with mounting bracket
4.2 Mounting the Control Unit
- Position the control unit on the handlebar, typically near the left grip, within easy reach of your thumb.
- Secure the control unit using its integrated clamp.
Figure 3: Close-up of C900E control unit buttons
4.3 Connecting Cables
- Locate the main cable harness from your e-bike's controller.
- Connect the C900E display's cable (often with a green connector) to the corresponding port on your e-bike's harness. Ensure the connection is firm and the connectors are fully seated.
- Route all cables neatly along the handlebar and frame, securing them with zip ties or cable clips to prevent snagging or damage.
Figure 4: Rear view of C900E display with cable routing
5. Operating Instructions
5.1 Power On/Off
- To power on the display, press and hold the Power button (⑂) on the control unit for a few seconds.
- To power off, press and hold the Power button (⑂) again until the display turns off.
5.2 Basic Display Functions
Upon powering on, the display typically shows:
- Current Speed
- Battery Level Indicator
- Pedal Assist Level (PAS)
- Trip Distance / Odometer
5.3 Navigating Menus and Adjusting Settings
Use the buttons on the control unit to interact with the display:
- Power Button (⑂): Short press to cycle through display information (e.g., Trip, ODO, Max Speed, Avg Speed). Long press to power on/off.
- SET Button: Short press to enter/exit settings menu or confirm selections.
- '+' / '-' Buttons: Adjust pedal assist levels (PAS) up or down. In settings menus, these buttons are used to navigate options or change values.
- Light Button: (If present) Short press to turn the e-bike's lights on/off.
Refer to the on-screen menu for specific adjustable parameters such as wheel size, speed limit, and unit system (km/h or mph).
6. Maintenance
- Cleaning: Wipe the display screen and unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Protection: Avoid exposing the display to heavy rain or direct water jets. If riding in wet conditions, consider a protective cover.
- Cable Inspection: Periodically check all cables and connectors for wear, fraying, or loose connections.
- Storage: When not in use for extended periods, store the e-bike and display in a dry, temperate environment.
7. Troubleshooting
7.1 Display Not Turning On
- Check if the e-bike battery is charged and properly connected.
- Ensure all cables between the display, control unit, and e-bike controller are securely connected.
- Verify that the power button on the control unit is functioning correctly.
7.2 Incorrect Speed/Distance Readings
- Check the wheel size setting in the display's menu. Ensure it matches your e-bike's wheel size.
- Inspect the speed sensor and magnet on your e-bike's wheel for proper alignment and cleanliness.
7.3 Buttons Not Responding
- Ensure the control unit is clean and free from debris that might obstruct button movement.
- Try restarting the display by powering it off and on.
- Check the cable connection from the control unit to the display/controller.
7.4 Display Color Variation
The pictures shown in our store are based on the true products. Due to different monitor settings and brightness, there may exist normal tiny color differences. This is not typically a defect.
7.5 Handling Defective Products
If you receive a product that is defective, please do not sign the shipping bill if the product is visibly damaged upon delivery. It is the shipping company's responsibility. Please take photos of the defective product and contact customer support immediately.
8. Specifications
| Feature | Detail |
|---|---|
| Model | C900E |
| Display Type | LCD, TFT |
| Compatibility | Bafang LED TFT Kit compatible |
| Origin | Mainland China |
| High-concerned chemical | None |
| Package Length | 10 cm |
| Package Width | 8 cm |
| Package Height | 6 cm |
| Package Weight | 0.175 kg |
9. User Tips
- Always ensure your e-bike's battery is adequately charged before a ride to prevent unexpected power loss to the display.
- Familiarize yourself with the display's settings in a stationary position before riding to avoid distractions.
- Keep the display firmware updated if updates become available from the manufacturer or your supplier.
10. Warranty and Support
For any questions or problems regarding your C900E display, please contact your seller or the manufacturer. They are committed to assisting you and resolving any issues you may encounter.
When contacting support, please provide the following information:
- Order Number
- Detailed description of the problem
- Image/video of any defective products (if applicable)
If you are not satisfied with the product upon receipt, please communicate with your seller to discuss potential solutions. Please note that specific return policies and conditions may apply, and it is advisable to clarify these with your seller.
Figure 5: General Warranty and Support Information
