ENGWE L20 User guide [da]

L20

CAUTION READ THIS MANUAL BEFORE USING YOUR EQUIPMENT

Table of contents

1.lmportant warning ..................................................... 1

2.Product components ................................................. 3

3.Technical parameters................................................ 4

4.Product installation ................................................... 5

4.1 Install the handlebar .......................................... 6

4.2 Install the front wheel ........................................ 7

4.3 Install the front mudguard.................................. 8

4.4 Install the front basket ....................................... 9

4.5 Install the headlight ......................................... 10

4.6 Install the pedals............................................... 11

5.Display instructions ................................................. 12

6.Battery ..................................................................... 18

7.Charging ................................................................. 20

8.Warranty policy ....................................................... 21

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1.lmportant warning

This manual include important safety performance informatlon
and service informatlon.Please make sure you have read the
following warning content before the first time you use our

product.

lf you borrow your electric bicycle to other people, please let
the user read this manual, it could help to decrease the risk of

accident.

Please wear a suitable and safe helmet before riding, please
wear the clothes with fluores-cent and reflective stripes when you
ride at night.Don't exceed speed limit, it is a main reason of traffic
accident, we should abide by the traffic rule, we shouldn't exceed

the speed limit.

Don't touch the charging hole on the bike, or use metal touch
it, otherwise, the accident will be caused by the transient short

circuit of the current.

Zero starting, braking frequent, driving against the wind,
carrying people or anything;insufficient air pressure on the tires.
All of these will use much electric energy, and thenreduce the
endurance mileage.lf you want the best endurance mileage,

please do something as follows :

1) Please use assist mode;

2) On the premise of safety, don't brake frequently or use zero

starting.

3) Don't overload;

4) Before riding, please check the pressure of the tire and

supply enough pressure.

Our Ebike should avoid prolonged exposure to the sun or rain,
avoid storage in places with high temperature or corrosive gas,

so as to avoid electroplating parts and paint surface by chemical

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corrosion and electrical parts damage, resulting in operational

failure and accidents.

Your current insurance business may not cover the situation
you may encounter when riding an electric bike, please contact
your insurance company or insurance broker forrelevant

consultation.

If you use our ebike in your country, pls refer to the local laws and

regulation. For example in China, riding an electric bicycle must reach

the age of 16.

Bicycles are vehicles with certain risk fact factor, please be sure to
abide by the traffic rules. At the same time, when emergency braking,
brake the rear wheel first, then brake the frontwheel, when cycling
speed is too fast. There is a danger of tipping over if you brake the

frontwheel suddenly, please ride carefully.

3

2.Product components

1.Display

2.Handlebar

3.Front basket

4.Front light

5.Fork

6.Tire

7.Pedal

8.Crank set

9.Battery

10.Chain

11.Freewheel

12.Motor

13.Rear light

14.Seatpost

15.Saddle

4

3.Technical parameters

Performance

index

Project

US

EU

Basic

Parameters

Vehicle Size

1737*700*1140

1737*700*1140

wheel Size

20Inches

20Inches

Body Material

Aluminium alloy

Aluminium alloy

Maximum Load

264 Ibs(120KG)

264 Ibs(120KG)

Vehicle weight

74.8 Ibs(34KG)

74.8 Ibs(34KG)

Main

Parameters of

the Whole

Vehicle

Maximum Speed

25mph(39km/h)

25km/h(15mph)

Maximum

Gradient

10°

10°

Rear Derailleur

7-Speed

7-Speed

Mileage Range

42km

26miles

66km

41miles

Working

Temperature

23°F-95°F(-5~35)

23°F-95°F(-5~35)

Battery

Parameters

Rated Voltage

48V

48V

Battery Capacity

13AH

13AH

Motor

Parameters

Motor Power

750W

250W

Motor Type

Brushless Gear

Motor

Brushless Gear

Motor

Charger

Parameters

Input voltage

100-240v

100-240v

output voltage

54V

54V

Output Current

2A

2A

5

4.Product installation

Tool box checklist

6

4.1 Install the handlebar

（1）Remove the handlebars to remove the packing material and

place the center at the riser clamlet.

（2）Install 4mm hexagon wrench clockwise. Do not tighten the
4 bolts in FIG. A. Adjust the handle to the proper Angle in Fig. B,

and then tighten the 4 bolts with proper force.

A

B

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4.2 Install the front wheel

（1）Remove the front wheel to remove the packing material, and

install the screw gasket shaft sleeve according to the drawing.

（2）Place the front wheel in the front fork card slot and lock it

with a 15mm wrench.

8

4.3 Install the front mudguard

（1）The lifting lug of the mud pan is connected with the hole of
the front fork axle pipe,and then threaded in the screw to tighten

it.

（2）The mudguard support shall be aligned with the front fork
mudguard take-up hole position,and then threaded into the screw

for tightening.

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4.4 Install the front basket

（1）Remove the basket to remove the packaging material, and

install the screw gasket according to the drawing.

（2）Install 4 bolts clockwise using a 4mm hexagon wrench, and

place the harness in the front shelf hook.

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4.5 Install the headlight

（1）Install the headlight screw washer nut according to the

drawing.

（2）The headlight line is fixed as shown in the figure.

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4.6 Install the pedals

（1）Prepare left and right pedal，The pedal“R”is installed on one

side of the chainring, and "L" is opposite to the chainring.

（2）Tighten the right pedal “R” clockwise, Tighten the left pedal

“L” counterclockwise.

L

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5.Display instructions

1.Product name and model name

Intelligent LCD display for e-bike; model: YL81C.

2.Specifications

● 36V/48V power supply

● Rated working current 15mA

● Maximum working current 30mA

● Leakage current at power-off <1uA

● Working current at the supply controller end 50mA

● Working temperature -20～60℃

● Storage temperature -30～70℃

3.Appearance and dimension

4.Function overview and functional area layout

4.1 Function overview

Display YL81C provides a variety of functions to meet the riding needs of

users, including:

● Battery level indicator

● Assist level adjustment and indication

● Headlight indicator

● Speed indicator (including real-time speed, maximum speed (MAXS) and

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average speed (AVG))

● Distance indicator (including ODO and trip distance (Trip))

● Error code indicator

● Bluetooth connection indicator (reserved)

● Parameter setting function

4.2 Functional area layout

4.3 Button definitions

There are three buttons on the operating unit of display YL81C, i.e., the

on/off button , plus button and minus button .

5. General operation

5.1 Power on/off

By pressing and holding the button , the display will start to work and

the working power supply of the controller will be turned on. In the power-on

state, by pressing and holding the button , your e-bike will be powered off.

In the power-off state, the display will no longer use the battery power, and its

leakage current will be less than 1uA.

■ If your e-bike is not used for more than 10 minutes, the display will be

automatically powered off.

5.2 Display interface

After the display is turned on, the display will show the real-time speed

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(km/h) and the trip distance (km) by default. By pressing the button , the

information displayed will be switched between the trip distance (km), ODO

(km), maximum speed (km/h) and average speed (km/h).

When the distance reaches 9999.9 km, it will be automatically reset to

zero.

5.3 Push assistance

By pressing and holding the button , the electric push assistance

mode will be enabled. Your e-bike will run at the constant speed of 6km/h. The

display will show level P. By releasing the button , your e-bike will

immediately stop power output and return to the state before push assistance.

■ The push assistance function can only be used when you are pushing your

e-bike. Please do not use it during riding.

5.4 Headlight on/off

By pressing and holding the button , the controller will turn on the

headlights and the display backlight will turn dark. By pressing and holding the

button again, the controller will turn off the headlights and the display

backlight will resumes the luminance.

5.5 Assist level selection

By pressing the button / , the e-bike assist level will be switched to

change the motor output power. The assist levels available for the display

include: levels 1-5.

5.6 Battery level indicator

The battery level indicator consists of five segments. When the battery is

fully charged, the five segments will be all on. In case of low voltage, the

outline of the battery indicator will flash, which means the battery has to be

charged immediately.

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5.7 Error code indicator

When a fault occurs in the electronic control system of your e-bike, the

display will automatically indicate the error code in the distance area in the

format of E0**. Detailed definitions of error codes are shown in Schedule 1.

■ When an error code appears on the display interface, please conduct

troubleshooting in time. Otherwise, your e-bike will not work normally.

6. General setting

■ All parameters can only be set when your e-bike stops.

The steps for general setting are as follows:
In the power-on state, when the display shows the speed of 0,

6.1 Trip distance reset

Press and hold the buttons and at the same time for more than

2 seconds to reset the trip distance.

6.2 Factory reset

dEF refers to factory reset. dEF-n represents not to restore factory

settings, and dEF-y represents to restore factory settings. Press and hold the

buttons and at the same time for more than 2 seconds to enter the

factory reset interface, and press the button / to select a parameter.

6.3 Speed limit setting

P3 represents the speed limit setting option. The adjustable range is

10~40km/h. Press the button to enter the parameter modification

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interface. Press the button / for parameter selection. Press the button

to save the parameter and return to the selection interface of general setting

options.

6.4 Metric/imperial system setting

P4 refers to the metric/imperial system setting option. 00 represents the

metric system, and 01 represents the imperial system. Press the button

to enter the parameter modification interface. Press the button / for

parameter selection. Press the button to save the parameter and return

to the selection interface of general setting options.

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Schedule 1 Error Code Definitions

Error codes for protocols YL-01 and YL-02:

Error

codes for

protocols

YL-01

and YL-

02:

Definition

Error

codes for

protocols

YL-01

and YL-

02:

Definition

E001

Controller Abnormality

E004

Throttle Abnormality

E002

Communication

E005

Brake Abnormality

E003

Motor Hall Signal

E006

Motor Phase

Error codes for protocols YL-05, KDS and YL-J:

Error

codes for

protocols

YL-01

and YL-

02:

Definition

Error

codes for

protocols

YL-01

and YL-

02:

Definition

E021

Current Abnormality

E024

Motor Hall Signal

E022

Throttle Abnormality

E025

Brake Abnormality

E023

Motor Phase

E030

Communication

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6.Battery

●How far a fully charged battery can go? That depends on the

loading weight, road condition and battery capacity. But in the

same condition, average speeds can continuous longer travel

range.

●When storing the battery for a longer time, (during winter

time) it is important to place the fully charged battery in a dry

place.

●Attention:The battery should be re-charged once every 2-3

month when it is not used.

WARNING:

●Keep the battery out of reach for children.

●Never try to open the battery.

●Only use the ENGWE supplied battery. Do not use a battery

from any other different product models.

●If the battery is damaged because it has been dropped

somewhere or biking accident, there may be a risk of

electrolytes leakage. Beware of chemical burns! And

immediately stop using the damaged battery.

●Do not touch the battery without a cloth or gloves and make

sure no acid touches your eyes.

●Do not store the battery in temperatures above 95°F or below

23°F.

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●Do not allow the battery to run down completely before

charging. Charge the battery before storing the product. If the

battery is completely empty, it may cause the battery to no

longer charge.

●Charge a new battery for at least 4-6 hours before you use

it in your product for the first time. Never charge the battery

too long per time. Overheating or undercharging the battery

may shorten battery life and decrease product run time.

IMPORTANT: BATTERY DISPOSAL

●Battery must be recycled or disposed of in an environmentally

sound manner.

●Do not dispose of the battery in a fire. The battery may explode

or leak.

●Do not dispose of a battery in your regular household trash.

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7.Charging

●You can charge the bike directly, or you can remove the battery

for charging.

●The RED light indicates it is in charging and GREEN light

indicates the battery is fully charged. (Please put off plug from
wall)Usually the charging time is 4-6 hours depends on the

battery capacity remain.

WARNING:

●Charging time over 10 hours is prohibited, please kept it away

from high temperature environment and stores it in a cool place.

●Please make sure that the battery charger and charging plug

are always kept dray and never get wet.

●The charger should only be cleaned with a dry cloth. Never use

a wet cloth, oil or any other liquid.

●Do not connect positive and negative terminals.

●Stop the charging procedure immediately if you notice

anything unusual.

●It is strictly forbidden to cut the battery charging and

discharging lines.

●It is strictly forbidden to disassemble the battery box or modify

the internal structure and protection board of the lithium battery.

●It is strictly forbidden to disassemble the battery box or modify

the internal structure and protection board of the lithium battery.

●After using the battery, please charge it within 12 hours.

If the product has problems with the following forms during the
protection period, we will provide customer service as part of the

product quality guarantee.

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8.Warranty policy

Dear customer !

Thank you for purchasing ENGWE series products !

Warranty service:

Please enter into the official website https://engwe-bikes.com/

to view the warranty policy of Engwe.

After purchasing Engwe products, please kindly contact Engwe

after-sales service for help when there is a quality issue, which

means that you can contact customer service of the seller where

you buy your e-bike from.

Please provide your order number, purchase interface, videos

of the issue.