Ebikeling NC 81F Electric Bike Display User Manual

Q: How do I turn on the Ebikeling NC 81F display?

Press and hold the power button for 2 seconds to turn it on. Use the up/down arrows to adjust pedal assist (PAS) levels.

Q: How do I turn on the bike’s headlight/taillight?

Hold the up arrow button for 3 seconds to toggle the lights on/off.

Q: How does the speed sensor work on an e-bike?

The speed sensor is usually mounted on the wheel spokes or near the brake disc. It detects wheel rotation to display real-time speed on the screen.

Q: Can I ride my e-bike without battery power?

Yes, but it will function like a regular bike (no motor assistance). Pedaling will be harder due to the bike’s weight.

Q: How is e-bike power measured?

Watts (W) indicate motor power (e.g., 250W, 500W, 750W). Voltage (V) affects speed & efficiency (common: 36V, 48V, 52V). Amp-hours (Ah) determine battery capacity (e.g., 10Ah, 15Ah).

Q: How do I check the battery level?

The display shows battery percentage (e.g., 100%, 50%, 20%). Some models also indicate voltage (e.g., 48V = full, 42V = low).

Q: What is "Zero Start" mode?

Zero Start (0): Motor engages immediately when throttle is used. Non-Zero Start (1): Motor activates after pedaling (safer for hills).

Q: How do I maintain my e-bike battery?

Avoid full discharges (charge at 20-30% remaining). Store at 50-60% charge if unused for long periods. Keep away from extreme heat/cold.

Q: Can I remove the speed limiter?

Not recommended—modifying the limiter may void the warranty and reduce motor lifespan. Some displays allow adjusting speed settings via advanced menus.

Q: Does the Ebikeling display show distance & trip data?

Yes, it tracks: ODO (Total Distance) Trip Distance Max/Average Speed

Table of Contents

Ebikeling NC 81F Electric Bike Display

Product Name and Model Number

Smart LCD display for electric bicycle; Model: NC-81F.

Specification

36V/48V/52V power supply
Display rated current 15mA
Display maximum current 30mA
Shutdown leakage current <1uA
Supplied current to the controller 50mA
Operating temperature -20 ~ 60 °C
Storage temperature -30 to 70°C

Appearance and Size

Function Overview and Functional Areas

Functional Overview

The NC-81F display offers a variety of features to suit your riding needs, including:

Battery level indicator
Pedal assist (PAS) level indicator
Speed (current speed, maximum speed, average speed)
Mileage display (single and total mileage)
Walk boost mode
Light ON/OFF
Error code indicator
Cruise control indicator (optional)
Bluetooth connection indicator (optional)
Personalized parameter settings (e.g., wheel diameter, speed limit, rated voltage setting, and PAS parameter setting etc.)
Factory default parameter recovery function.

Functional Areas

Button Definitions

The NC-81F display is equipped with five buttons on the corresponding operating unit:

Power On/Off
Plus
Minus
Light
Toggle

Routine Operations

Power On/Off

Long-press to power on/off the display. When the display is off, it will not use battery power, and the leakage current is less than 1uA.

The display will automatically shut off if it is not used for more than 10 minutes.

Display Interface Switching

When the display is powered on, it will show the Current Speed (km/h) and Trip Odometer (km) by default. Short press toggle to switch between Trip Odometer(km), Odometer (km), Maximum Speed (km/h), and Average Speed (km/h).

Walk Boost Mode and Cruise Enable Setting

Long-press and hold the minus button, and the electric bicycle enters the walk boost mode. The electric bicycle will walk at a fixed speed of 6 km per hour, and the display shows the walk boost icon. Release to stop the power output immediately and restore to the state before the walk boost.

The walk boost mode can only be used when pushing the electric bicycle; please do not use it while riding.

The whole bicycle is at a stable speed. Long-press the minus button, and the bicycle will enter the cruise state. The bicycle runs at a constant speed at the speed you control, and the screen displays cruise. Press the again or turn the knob or press the brake, and the bicycle will exit the cruise state.

Turning On/Off Lights

Press the light button to make the controller turn on the lights, and the display backlight becomes dim. Press again to make the controller turn off the lights and restore the backlight brightness.

PAS Level Selection

Press plus/minus to switch the PAS level of the electric bicycle, thus changing the motor output power.

Battery Level Display

The Battery level is shown as 5 bars. When the battery is fully charged, all 5 bars light up. When the battery is fully depleted, the bar will begin to flash, warning the user to charge the battery as soon as possible.

Error Code Display

If there is a fault occurs in the electronic system of the electric bicycle, the display will automatically show an error code, see Schedule 1 for a detailed definition of the error code.

When the error code appears on the display, please troubleshoot the problem in time, as the electric bicycle will not be able to drive normally after the problem occurs.

Brake Prompt Display

When you press the brake of the whole vehicle, the first two digits 8 of the display mileage area will be prompted with “br”, and the “br” character of the homing brake will disappear, br represents brake, and the prompt is braking.

Personalized Parameter Settings

Each setting needs to be done with the bicycle stationary. Please also note that the following operations can only be performed within 8 seconds before starting the machine.

The personalized parameter setting procedure is as follows: When the display is ON and the speed shows 0,

Press and hold PLUS, MINUS simultaneously for more than 2 seconds to enter the personalized parameter setting interface.
Press PLUS/MINUS to toggle between the personalized parameter setting interface and press TOGGLE to enter the parameter changing state.
Press PLUS/MINUS to select the parameter, long press PLUS for addition operation, long press MINUS for subtraction operation.
Press TOGGLE to save the parameter settings and return to the personalized parameter setting interface.
Long press TOGGLE to save the parameter settings and exit the personalized parameter setting interface.

The following options are available on the personalized parameter setting interface.

Backlight Luminance Setting

01P is the backlight luminance setting. Parameters 01, 02, and 03 are available, which represent the backlight luminance, 01 for the minimum luminance, 02 for the standard luminance, and 03 for the maximum luminance.

Press the button to enter the parameter modification interface. Press the button PLUS/MINUS for parameter selection.

Press the TOGGLE button to save the parameter and return to the selection interface of the general setting options.