Bigstone C900E Intelligent LCD Electric Bike Display User Manual

1. Introduction

The Bigstone C900E Intelligent LCD Electric Bike Display is a sophisticated control and information unit designed for electric bicycles, particularly those utilizing Bafang motor systems. It provides riders with essential data such as speed, battery level, assist level, and more, enhancing the overall e-biking experience. This manual will guide you through the proper installation, operation, and maintenance of your C900E display.

2. Safety Information

⚠️ Disclaimer: Please be aware of potential fire risks and always adhere strictly to the instruction manual for all charging and storage procedures related to your e-bike's battery system. This display unit itself does not pose a fire risk but is part of an electrical system.

• Ensure all connections are secure and waterproof before riding.
• Do not attempt to open or modify the display unit, as this may void the warranty and cause damage.
• Keep the display clean and free from obstructions to ensure clear visibility.

3. Product Overview

The C900E display system consists of an LCD/TFT display unit and a separate control unit with buttons, designed for convenient handlebar mounting.

Components:

• LCD/TFT Display Unit: Main screen for displaying ride data.
• Control Unit: Separate button panel for easy access to functions.
• Connection Cable: For connecting the display to the e-bike's main harness.
• Mounting Brackets: For securing the display and control unit to the handlebar.

4. Specifications

5. Setup and Installation

Follow these steps to properly install your Bigstone C900E display on your electric bicycle.

5.1 Mounting the Display and Control Unit

1. Choose a suitable position on your handlebar for both the display unit and the control unit. Ensure they are easily accessible and do not obstruct your view or other controls.
2. Attach the display unit to the handlebar using its integrated clamp. Tighten the screws securely, but do not overtighten.
3. Attach the control unit to the handlebar, typically near the left grip, ensuring the buttons are within easy reach of your thumb. Tighten its clamp.

5.2 Electrical Connection

1. Locate the main wiring harness of your e-bike, typically near the motor or battery.
2. Connect the green connector from the C900E display cable to the corresponding port on your e-bike's harness. Ensure the connection is firm and fully seated.
3. Route the cables neatly along the frame, securing them with zip ties or cable clips to prevent snagging or damage.
4. Verify all connections are secure and protected from water and debris.

6. Operating Instructions

The C900E display provides intuitive control over your e-bike's functions. Familiarize yourself with the control unit buttons:

• Power Button (ⓘ): Press and hold to turn the display ON/OFF. A short press may cycle through display modes or activate backlight.
• Plus Button (+): Increases pedal assist level, navigates up in menus, or increases values.
• Minus Button (-): Decreases pedal assist level, navigates down in menus, or decreases values.
• SET Button: Enters settings menu, confirms selections, or cycles through main display information.

6.1 Basic Operation

1. Power On: Press and hold the Power button until the display illuminates.
2. Adjust Assist Level: Use the '+' and '-' buttons to cycle through different levels of pedal assistance (e.g., 0-5).
3. View Information: Short press the SET button to cycle through various data displays such as current speed, average speed, max speed, trip distance, total distance (odometer), battery voltage, etc.
4. Power Off: Press and hold the Power button until the display turns off.

6.2 Advanced Settings (General)

To access advanced settings, typically press and hold the SET button while the display is on, or a combination of buttons. Specific menu options may include:

• Wheel diameter setting
• Speed limit adjustment
• Battery voltage settings
• Backlight brightness
• Unit selection (km/h or mph)

Note: Detailed menu navigation and specific parameter adjustments may vary. Refer to the comprehensive Bafang system manual if available, or consult the seller for specific instructions on your customized C900E display.

7. Maintenance

• Cleaning: Wipe the display screen and control unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Connections: Periodically check all electrical connections for tightness and signs of corrosion. Ensure they are clean and dry.
• Physical Damage: Avoid dropping the display or subjecting it to strong impacts. Protect it from extreme temperatures and direct prolonged sunlight.
• Water Exposure: While the display is designed to be weather-resistant, avoid submerging it in water or exposing it to high-pressure water jets.

8. Troubleshooting

• Display Not Turning On:
  • Check if the e-bike battery is charged and turned on.
  • Ensure all electrical connections to the display are secure.
  • Verify the power button is pressed and held long enough.
• No Speed Reading:
  • Check the speed sensor and its magnet on the wheel for proper alignment and function.
  • Ensure the display is correctly connected to the motor controller.
• Incorrect Information Displayed:
  • Access the display settings to verify parameters like wheel diameter are correctly set.
  • If issues persist, try resetting the display (if an option is available in settings, or by disconnecting power for a few minutes).
• Error Codes:

  If an error code appears on the display, consult your e-bike's motor system manual (e.g., Bafang manual) for specific interpretations and troubleshooting steps. Common error codes relate to motor, controller, or sensor issues.

If you encounter persistent issues that cannot be resolved with these steps, please contact the seller or a qualified e-bike technician for assistance.

9. User Tips

• Compatibility Check: Before purchasing or installing, always confirm that the C900E display is compatible with your specific e-bike motor system (e.g., Bafang). This is crucial for proper function.
• Cable Management: Take time to properly route and secure all cables during installation. This prevents damage, ensures safety, and gives a cleaner look.
• Screen Protector: Consider applying a screen protector to the display to guard against scratches and minor impacts, especially if riding in rugged conditions.

10. Warranty and Support

For specific warranty details, please refer to the terms provided by your seller at the time of purchase. General support information is as follows:

• Defective Products: If you receive a defective product, do not sign the shipping bill. Document the defect with photos/videos and contact the seller immediately for resolution.
• Returns: The seller offers returns within 15 days if the product itself is defective, damaged, or due to a seller fault. Returned items must be in their original condition.
• Contacting Support: For any questions, issues, or support needs, please contact the seller directly. Provide your order number and any relevant images or videos to facilitate a quicker resolution.