S866 E-Bike LCD Display 24V / 36V / 48V

S866 LCD display for 24V, 36V and 48V electric bicycle systems. Designed as a replacement display for compatible e-bike controllers using the S866 UART display configuration. Please verify that the communication protocol is the same before purchasing. The instrument's communication protocol is Communication Protocol 2 and must be used with a controller that supports Communication Protocol 2.

Important: S866 displays can be supplied with different connectors and wiring configurations. Please compare the connector and wiring with your original display before ordering.

S866 E-Bike LCD Display

The S866 LCD display provides the rider with essential e-bike information and allows access to the main electric assistance functions and system settings.

Display Specifications

• Model: S866
• Supported system voltage: 24V / 36V / 48V
• Communication: UART
• Display type: LCD

Display Functions

Depending on the controller and e-bike configuration, the S866 can display and control functions such as:

• current speed;
• average and maximum speed;
• battery level;
• pedal assist level;
• trip distance;
• total distance / odometer;
• riding time;
• battery voltage;
• system status and error information;
• display backlight;
• selected e-bike system settings.

Replacement S866 Display

This display can be used to replace a damaged, faulty or unreadable S866 unit when the controller, connector and wiring configuration are compatible.

Display-related faults can also be caused by the controller, wiring, battery or other electrical components, so compatibility and system condition should be checked before replacement.

How to Check Compatibility

Before ordering, compare your original display with the product photos and check:

• S866 model identification;
• system voltage;
• connector shape;
• number and arrangement of connector pins;
• connector orientation;
• wiring configuration;
• controller compatibility.

A visually identical S866 display may not necessarily be compatible if the connector or controller communication configuration is different.

Not Sure If This S866 Display Fits?

If you are unsure whether this S866 LCD display is compatible with your e-bike, please contact us before ordering.

For compatibility checking, please send us clear photos of your original display, its connector and connector pins, together with any labels or part numbers. If possible, also include a photo of the controller label.

You can also browse our e-bike parts and replacement components available from Elanus Parts.