Bunch Coupe User manual

User Manual The Coupe

Version 1.5

January 2021

CONGRATULATIONS

on the purchase of your Bunch cargo bike with pedal assist.

We recommend that you read this manual thoroughly before you take your bike on the road. This manual

provides information on the proper use and operation of the pedal assist, automatic stepless gearbox, brakes,

and battery. In addition, we will provide recommendations and tips for cycling on your Bunch cargo bike and

explanations of the warranty and maintenance.

The Bunch Bikes team wishes you many happy Miles of cycling!

Serial number

The serial number (frame number) is located on the information placard, on the main frame, just below the

battery.

Your frame number: …………………….

Table of Contents

1. Bicycles with pedal assist.......................................................................................................................... 7

2. Display and operation .............................................................................................................................. 8

3. Automatic acceleration (the Enviolo Automatic + system).................................................................... 188

4. Brakes.................................................................................................................................................... 22

5. Battery................................................................................................................................................... 23

6. Battery Charger...................................................................................................................................... 28

7. Accessories ............................................................................................................................................ 31

8. Tips for use and safety............................................................................................................................ 32

9. Maintenance................................................................................................................................................35

10. Warranty..................................................................................................... Error! Bookmark not defined.

1. Bicycles with pedal assist

1.1 What is the difference between "electrically pedal-assisted" and "electrically powered"?

Your Bunch cargo bike is electrically pedal-assisted; that is completely different from electrically powered.

Electrically pedal-assisted means that you will only be assisted by the electric motor if you yourself apply

(sufficient) pedaling force to the pedals. If you stop pedaling, the motor will also stop "helping" you. In an

electrically powered vehicle, you only have to keep a button pressed in or operate a lever, and the vehicle will

drive without you applying your own pedaling force.

1.2 Cycling with pedal assist

Cycling with pedal assist gives you the feeling that you are always "riding with the wind behind you," and the

experience is quite different from cycling without assist: it makes it easy to start from a stationary position or

on a hill, or to ride against a headwind, and of course you can reach higher speeds comfortably. Our advice is

first to try out The Coupe on a quiet bike path, for instance, without children in the cargo box and also with

limited assist (see Display and operation). Note that the rear frame will tilt slightly to the left or the right on

curves; this is completely normal and is specially designed to optimize riding behavior on curves and make it

feel more natural.

Set the pedal assist to a higher level once you feel like you have the bike "under control." The maximum

speed that may be reached with the assist is legally specified at 20mph; this means that if you cycle faster

than 20mph, the motor will stop providing assistance.

Note: We recommend greatly reducing the speed on curves to prevent the risk of tipping over. Please keep in

mind that 20mph is quite fast for a cargo bike; not everyone in traffic is ready for that yet!

2. Display and operation

2.1 Specifications

Rated voltage: 36 V/43 V/48 V

Rated power: 10 mA

Maximum operating power 30 mA

When turned off, the leakage current is: ≤1 uA

Working current delivered to regulator: 50 mA

Operating temperature: -4°F~113°F

Storage temperature: -22°F~158°F

IP level: IP65

Storage humidity: 30%-70%

2.2 Overview of functions

Speed indicator: Screen showing current speed (SPEED), maximum speed (MAXS) and average

speed (AVG).

Speed displayed in kilometers or miles: You can switch between kilometers or miles on the

display.

Intelligent charge indicator: Stable display of the battery status is guaranteed by an optimization

algorithm. This avoids the problem, common to many displays, of fluctuating display of the battery

level.

Operation of lights: The headlight, taillight and screen display illumination switch on and off

automatically, depending on the light conditions.

Screen illumination: Choose between different lighting levels, from level 1 (dim) to level 5 (bright).

Assist level indicator: This indicates the current assist mode (level 0 to 5).

Trip distance indicator: The maximum distance is reached when 99999 appears on the screen. You can

display the distance for a single trip (TRIP) or the total distance (TOTAL).

Error indicator

Pedal assist

The service lights will appear depending on the charge status and the total distance traveled. The

display automatically estimates battery life and issues a warning if the set number of battery

charges is exceeded. A warning is also issued when the total distance traveled exceeds the set

value. This function can be turned off.

2.3 Normal range indicator

A - Service notification:

SERVICE appears on the display when your E-bike is ready for maintenance. This warning sign appears when

the distance traveled or the number of battery charges is exceeded. This function can be turned off. Contact

Bunch Bikes or a trained E-bike service shop.

B - Menu:

You can switch between different display modes.

C - Speed indicator:

Choose km/h or mile/h.

D - Speed mode:

Displays the selected average speed (AVG) and the maximum speed (MAXS).

E - Error code prompt:

This symbol is displayed if a problem is detected.

F - Trip distance indicator:

This shows the distance traveled during a single trip or the total distance traveled. (Depending on the setting

selected)

G - Assist level:

This shows the level of motor assist selected (1-5).

H - Pedal assist:

This shows that pedal assist is activated for support. When cycle assist is activated to pedal the bike forward,

the WALK symbol appears.

I - Lighting:

The characters will light up as soon as the headlight and taillights are turned on.

J - Distance mode:

You can display either the distance for a single trip (TRIP) or the total distance (TOTAL). The maximum

distance is reached when 99999 appears on the screen.

K - Battery charge status:

The charge status is indicated by 10 bars. The battery is fully charged when all the bars on the display are lit.

2.4 Definitions of buttons

A - "+" button: Switch to a higher level of motor assist.

B - "–" button: Switch to a lower assist level. Hold down for walk assist.

C - Lights on/off button: Pressing the button once turns the bike lights on. Pressing twice turns the lights off again.

D - On/off button: Switches the electric system on and then off again.

E - Display mode: Switching between the different displays and functions.

2.5 Normal operation

2.5.1 POWER ON/OFF

Press "D" and hold for 2 seconds: Turns on the display and the system.

Press "D" again and hold down for 2 seconds: Turns off the display and the system. The system is switched off

automatically after 5 minutes without activity.

2.5.2 Selecting the motor assist level

Press the "A" or "B" button to switch between the different assist levels. The lowest level is level 1; the highest is

level 5. The default level at power on is level 1. If no number is displayed, the motor is not providing assistance (see

examples below).

No assist

Assist level 1

Assist level 5

2.5.3 Switching display outputs

Press the "E" button to switch between trip distance and speed on the display. First the single-trip distance is

displayed (TRIP km) → then the total distance traveled (TOTAL km) → the maximum speed reached (MAXS

km/h) → and then the average speed (AVG km/h).

TRIP

TOTAL

MAXS

AVG

2.5.4 Turning the bike lights and display illumination on and off

Press "C" and hold for 2 seconds: The display illumination and your lights will turn on. Press "C" again and

hold for 2 seconds: The display illumination and your lights will turn off. When you use the display in the dark,

the illumination of your system is turned on automatically.

Exception: If you turned on the light manually, you must also turn it off manually.

The display offers five intensity levels.

Turned off

Turned on

2.5.5 WALK assist

Your E-bike has a walk assist feature that moves your bike forward at a speed of 3.5mph without you having

to pedal it. This is intended to help you get the bike up steep hills if you are walking the bike.

The models with walk assist are not intended to help you when riding or starting to ride your bike! If used in

this way the motor may overheat. Use walk assist only if you are walking alongside the bike. The wheels must

be in contact with the ground. There is a risk of injury if you do not follow these instructions.

Press and hold the "B" button on the control panel for 2 seconds. Walk assist is turned on. "WALK" appears on

the display. As soon as you release the button, walk assist mode is turned off.

Switching between pedal assist and walk assist modes.

Pedal assist indicator.

Walk assist indicator.

2.5.6 Charge status indicator

To ensure optimal performance of your E-bike, check your battery charge status before each trip. When the

display is on, the 10 LEDs will indicate the charge level. The number of bars in the LCD battery display

indicates the current charge status (see diagram). If all 10 bars are off and the digital screen is blinking, that

means you must charge your battery immediately.

Charge status display

Number of bars

Charge status

≥ 90%

75% ≤ C < 90%

60% ≤ C < 75%

50% ≤ C < 60%

40% ≤ C < 50%

30% ≤ C < 40%

20% ≤ C < 30%

10% ≤ C < 20%

8% ≤ C < 10%

5% < C < 8%

The digital display is blinking

≤ 5%

2.6 User settings

Do NOT change the settings while riding the E-bike.

2.6.1 General rules for operating your E-bike

•To activate the mode for entering parameter settings, turn on the display and then press and hold

the "E" button TWICE for more than 0.3 seconds each.

•You are now in the menu for entering parameter settings. Your settings can be changed.

•Press the "E" button briefly to confirm the settings. When you do this, the next setting will be

displayed immediately and you can scroll through your settings.

•To switch between the various settings, press the "E" button briefly.

•When the setting you selected begins to blink, press the "A" button to increase the parameter value

or the "B" button to decrease the parameter value.

•Once you have selected your setting, you can return to the main menu by pressing the "E" button

TWICE for more than 0.3 seconds.

•If no changes in the settings have been made within 10 seconds, the display will return to the

normal operating settings.

Normal operating settings

Parameter entry setting mode

2.6.2 Resetting the data from a single trip

For this setting mode, "tC" appears on the display.

•To delete the data from your last single trip (TRIP), the maximum speed (MAXS) and the average

speed (AVG), press the "A" button ("y" will appear on the display).

•If you do not reset the data from a single trip manually, it will be automatically reset once you have

traveled more than 99 hours and 59 minutes.

2.6.3 Distance shown in kilometers/miles

For this setting mode, "S7" appears on the display. Press the "A" or "B" button to switch between km/h and mile/h.

6.4 Bike lighting sensor, setting the light sensitivity

For this setting mode, "bL0" appears on the display.

Select a parameter value between 0 and 5 using "A" or "B". If you select "0," the sensor function will be

turned off. The lower the number, the darker it must be before the sensor turns the bike lighting on

automatically.

Function off

Lowest level

Highest level

2.6.5 Light brightness display

For this setting mode, "bL1" appears on the display.

Select a parameter value between 1 and 5 using "A" or "B." 1 is the dimmest background lighting, 5 the brightest.

Lowest level

Highest level

2.6.6 Automatic shut-off

For this setting mode, "OFF" appears on the display.

Select a parameter value between 1 and 9 using "A" or "B". The numbers indicate the minutes remaining

before the electrical system shuts down automatically.

1 minute (shortest)

9 minutes (longest)

2.6.7 Maintenance indicator

For this setting mode, "nnA" appears on the display.

Press the "A" or "B" button to choose the number "0" or "1." With "0" the function is turned off. With "1" the

function is activated and you will receive a maintenance warning for your E-bike.

The maintenance indicator appears when you have reached a certain number of charging cycles (100 charges)

and/or you have traveled a certain distance (5,000 kilometers). Each time you turn on the display, the word

"SERVICE" will appear and continue to blink for 4 seconds. The time intervals can be individually adjusted by a

supplier. They can also be changed later by a supplier or manufacturer with a USB connection on a computer.

Turned off

Turned on

Service

2.6.8 Information on battery status

For this setting mode, "b01" appears on the display.

In this mode you can see all relevant information about your battery. For this, press the "E" button and hold

for more than 3 seconds. The following information will be brought up in the following order:

Display

Information

b01

Current temperature

b02

Maximum temperature

b03

Lowest temperature

b04

Total voltage

b05

Current

b06

Average current

b07

Remaining capacity

b08

Total capacity

b09

Relative charge status

b10

Absolute charge status

b11

Charging/discharging status

b12

Longest period without charging

b13

Period since last charging

d01

Voltage of cell 1

d02

Voltage of cell 2

Voltage of cell n

2.7 Error code definition

Do not work on your own bike. You need special skills, experience, and tools to work on a bike! Take your E-

bike to a bicycle repair shop to have the error fixed.

The display will indicate when a malfunction is detected in your E-bike. If a defect is noted, a picture of a wrench

will appear on the display. One of the following defects will be displayed in the area where speed is indicated:

Error

Explanation

Error resolution

Braking action

Check whether a brake is stuck or locked on.

Protection from high voltage

Take your electric bike to your dealer or to a