ENGWE-BIKES EP-2 User manual

ENGWE-BIKES
Operation and maintenance manual
Before using the e-bike, please read the attached operating instructions.
Carefully read the safety rules.

1
IMPORTANCE
When using the electric bicycle, basic safety precautions should always be
followed, including the following:
1. Read all instructions.
2. To protect against fire, electric shock and injury to persons, do not immerse
cord, plugs, or e-bike in water or other liquid.
3. Close supervision is necessary when the e-bike is used by or near children.
4. Unplug from outlet when not in charging and before cleaning.
5. Do not operate the e-bike with a damaged cord or plug or after the e-bike
malfunctions, or has been damaged in any manner. Take the e-bike to the
nearest authorized service bike shop for examination, repair or adjustment.
6. The use of accessory attachments not recommended by the e-bike
manufacturer may result in fire, electric shock or injury to persons.
7. Do waterproof when using on a rainy or snowy day.
8. Do not let cord hang over the edge of table or counter, or touch hot
surfaces.
9. Do not place on or near a hot gas or electric burner, or a heated oven.
10. Always attach the plug to the battery first, then plug the cord into the wall
outlet.
11. Do not use the bike for other than intended use.
12. Save these instructions.
SAVE THESE INSTRUCTIONS

2
EP-2 / EP-2 Pro / ENGINE Pro
* Please note that this is a general manual. So, the frame style of the
electric bicycle (e-Bike) that you have may differ from the picture
shown in this manual.

3
PLEASE NOTE:
This manual is not intended as a detailed user, service, repair or maintenance manual.
Please seek assistance from a qualified technician for service, repairs or maintenance.
Importance……………….. ……………………………………………………
P1
Compliance with the Law ………………………………………………….
P4
Assembling …………………………………………………………………………
P5
Operating Your New e-Bike …………………………………………………
P10
Maintenance ………………………………………………………………………
P13
Specifications ……………………………………………………………………
P14
Safety ………………………………………………………………………………
P15
Trouble Shooting …………………………………………………………………
P17

4
Read This First: Safety and Compliance with the Law
Congratulations on your purchasing of your new e-bike. Your new e-bike is an
excellent piece of personal transportation equipment that will give you good service for
many years.
Before you start using your e-bike, we want you to be aware of a few important points.
Please read this section carefully..
Observe Laws Regarding the Use of Battery-Operated Bicycles
Your e-bike is designed and manufactured to meet safety requirements as a
battery-operated bicycle. However, state and local laws governing the use of
battery-operated bicycles on public roadways, parks, and other open areas may
differ. Please check with your local authority before using your e-bike in public
areas.
Observe Laws Regarding the Use of Bicycles
Note that all laws regarding the use of bicycles in public areas, such as those
mandating the use of helmets and the use of infant seats, will automatically
apply for e-bikes. Check with your local authority on what restrictions might
apply.
The Lithium-ion Battery of Your e-Bike
Your e-bike is equipped with the latest battery technology. The lithium-ion
battery is much lighter than lead- or nickel-based batteries that are being used
in some older models.
Your First Ride
Please be VERY CAREFUL when you are ready to get on your e-bike for the first
time because that the e-bike moves significantly faster than a regular bicycle at
active power-assisted mode. Take your e-bike to an area with a lot of open space
before you start. Do not start pedaling hard as soon as you get on the e-bike (as
you normally would be with a regular bicycle), as the e-bike will accelerate under
pedal-assist mode and you may be unprepared for the sudden increase in speed.
However, after a few times, you will enjoy using the pedal-assisted function.

5
Assembling Your New e-Bike
If you purchased your e-bike unassembled, please follow these instructions to
assemble your e-bike under the guidance of an adult or a qualified technician.
Assembly is quite easy as most of the parts are already assembled; you need only to
put a few large pieces together to complete the job.
For more information, please refer to this website: www.engwe-bikes.com.
Name of each Part
Speed sensor
Rear derailleur
Brake caliper

6
Check that the Package is Complete and Undamaged
Your e-bike comes in a carton containing the following:
The main body of the e-bike – consisting of the frame, the rear
wheel, the gear and chain, the rear brake, the battery in the
frame, the rear fender.
The handlebar subassembly with the battery’s keys that attached
on it – the handlebar subassembly is not really separate, as it is
connected to the main body by the brake cables and electrical
wires. The handlebar also has the brake levers and gear control
already assembled. Additionally, the right handle also has an
integrated control for the throttle mode power-assisted, a display
panel.
The Seat – the seat is attached to its pedestal stem.
The front wheel
The front wheel fender with supports
Front light – the front light is not really separate, as it is connected
to the main body by an electrical wire.
Tools and other parts – One multi-tools, one charger, a pair of
foot pedals and this manual, they are contained in a separate
box.

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Assembly - Step 1: Attach the handlebar subassembly
Stand the main body of the e-bike on the kickstand. Stand up and lock the steering
column that is at the front of the main body frame, insert the stem of the handlebar
subassembly into it. Make sure that the fork (that will hold the front wheel) is
pointing forward, and orient the handlebar accordingly. Insert the stem all the way
and tighten from the top using the quick lock.
Assembly - Step 2: Attach the Front Wheel Fender and the Front Light
Make sure that the fork from the steering column is pointing forward. Place the
front light and the front fender within the fork: locate the small projection with a
screw hole at the top of the fender, fit it to the bolt at the back of the base of the
steering column; attach the supports (one on each side) to the base of the fork
using two small bolts (supplied). After all three points (the dorsal point and the 2
support points) are properly attached, use the multi-tools to tighten.

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Assembly - Step 3: Attach the Front Wheel and Adjusting the Front Brake
Make sure that the fork from the steering column is pointing forward. Remove the
protective bar from the front fork, place the front wheel within the fork and the
brake disc within the brake block, seat the axial stem properly within the
receptacles at the tips of the fork, and tighten the nuts with the multi-tools. Make
sure that the front wheel moves freely and does not wobble from side to side.
Reposition the wheel and re-tighten if necessary.
Test the brake by lifting the front of the e-bike and setting the wheel in motion
(turn it) and apply the brake at the handlebar to stop it. If you could not set the
wheel in free motion, or if you could not stop it by applying the brake, you need
to re-adjust by increasing or decreasing the clearance.
Caution: Do not operate the e-bike until you are satisfied that both the front and
rear brakes are operational.
Assembly - Step 4: Installing the Seat and Pedals
Insert the pedestal stem of the seat into the seat column of the main body frame,
use the built-in lever to tighten.
Attach a pedal on each side of the crank, tighten with the multi-tools.
Inflate the tires to proper pressure.
At this point, your e-bike is a completely functional bicycle, although without any
battery operated to function as yet. Check all tightening points to make sure. Take a
short ride. Adjust the height of the handlebar, and the height and the tilt of the seat,
if necessary, for maximum comfort.

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Assembly - Step 5: Charging the Battery
Remove the charger from the box, attached the power cord and insert that to any
wall outlet. Insert the plug at the end of the smaller cable into the charging terminal
of the battery and start charging. The charging terminal is on the side of the battery
opposite to a hole on the side of the frame. The LED on the charger glows RED
while charging and glows GREEN when charging is complete. The battery should
be turned OFF while being charged. When the LED on the charger turns Green,
disconnect the charging cord and cover the charging terminal with the rubber cap.
If a battery is installed on the e-bike and turned ON, the display panel will show the
charge level of the battery when the bike turned ON.
You are now ready to start using your e-bike.

10
Operating Your New e-Bike
The method to turn on the bike is: I, twist the battery lock counterclockwise to the end
to turn on the battery; II, press power button on the left handle bar until the display
lights on; III, ride on the bike and twist the throttle bar or pedal the bike, the bike will
move, you can change the power level with control buttons, level 1 is the slowest and
level 5 is the fastest, level 0 is human model.
Your e-bike is driven by a motor embedded in the hub of the rear wheel. The motor is
powered by a battery. The amount of power delivered to the motor, and hence the
accelerating force on the e-bike, is controlled by you in a way according to the power-
assisted mode or full power mode you choose.
You can configure the e-bike to operate in the pedal-assist-only-mode or the full power
mode (should check against local laws to ensure full power mode is permitted) where
you can also use the hand throttle to deliver power to the motor.
Your First Ride
(Reprinted from the Safety and Compliance with the Law section)
Please be VERY CAREFUL when you are ready to get on your e-bike for the first
time because the e-bike moves significantly faster than a regular bicycle at active
power-assisted mode. Take your e-bike to an area with a lot of open space before
you start. Do not start pedaling hard as soon as you get on the e-bike (as you
normally would do with a regular bicycle), as the e-bike will accelerate under pedal-
assist mode and you may be unprepared for the sudden increase in speed.
However, after a few times, you will enjoy using the pedal-assisted function.
Pedal-Assisted
You must turn on the battery to use the e-bike in pedal-assisted mode.
In the pedal-assisted mode, power assist is triggered when you pedal forward, and
power assist stops when you stop pedaling, sometime would be delay. In other
words, power assist happens as long as you pedal. You don't need to pedal hard.
All you need is to apply a light force to the pedals continuously to maintain the
current flow. When you apply one of the brakes, power assist will automatically
stop, allowing the e-bike to slow down and stop. Power assist will turn itself off
when the e-bike has reached the maximum speed that the power level you choose.
You should use the gear shifter at the handlebar to set the gears appropriately
according to road conditions and pedal, as usual, you will find that you need to
exert a lot less effort and the e-bike travels faster and at a more steady speed..

11
I-ERS, Cruise Control and Ambient Light Detection (Only for ENGINE Pro)
Hand Throttle Control
Your e-bike battery is a lithium-ion battery. Lithium-ion battery requires specially
designed chargers. You should never charge your battery with a substitute
charger that is not designed for this use. Use of an unsuitable charger to charge
a lithium-ion battery will result in overheating, fire or even explosion. If your
charger is lost or damaged, contact your dealer to order a replacement.
Charge your battery while the e-bike is not in use. You should turn off the battery
before you charge it. You may charge your battery while it is mounted on the e-
bike, or after it has been removed from the e-bike.
Do not place either the charger or the battery near flammable substances while
charging is taking place. Charging should not be done in the vicinity of infants and
small children. It is also prudent to remove valuable objects from the immediate
vicinity of the battery while it is being charged.
The length of charging time depends on the level of charge the battery still holds.
If a battery is completely discharged, it will take 6 hours to be fully recharged.
When a battery is fully charged, the LED on the charger will transition from RED to
GREEN. At this point, you should disconnect the charger. Do not leave the
charger connected to the battery for a very long period of time after charging is
complete. (Leaving it connected for an overnight charging is OK.
It is normal for the charger and the battery to be slightly hot while charging is on-
going.
I-.I-ERS is stand for Intelligent Energy Recovery System. It allows the
battery to get recharged when it is on high speed or downhill. Over 20km/h(12mph)
at PAS 0/1, it will be triggered.
II-.Cruise Control will be triggered when you holding thumb throttle for 8 second,
and it will be released by braking pedaling or throttling.
III-The headlight automatic light up when the ambient is dark.
In the hand throttle mode, amount of power assist is determined by the throttle
switch controlled by your hand. You control the throttle by twisting it from its
resting position, the farther the throttle switch is from its resting position, the more
power is delivered to the motor to accelerate the e-bike. When you want to slow
down, you simply release the throttle and let it return to its resting position, and
simultaneously apply the brakes if necessary.
You do not need to pedal the e-bike if you use the hand throttle. However, you
can pedal while commanding power assist. If you do pedal to help the
movement, you conserve energy and the charge in the battery will last longer.
Charging Your e-Bike Battery

12
Removing the Battery from the e-Bike
The battery is an important and costly part of the e-bike. It is designed to be locked
into position with a key to preventing theft. You can take further precaution by
removing the battery while the e-bike is parked unattended. You may also have a
need to remove the battery from the e-bike to recharge it at a location where you
cannot park your e-bike.
The method to remove the battery is: I, open the cap of the charging port and
fold the bike; II, insert the key into the battery, hold pressing the key a bit until
twist clockwise to the end (Note: You can’t remove the battery until the lock bar
withdraws into the battery completely); III, slip off the battery, the battery is quite
heavy and you should take care not to drop it.
Maximizing the Riding Range
Many factors affect the rate of use of the electrical energy and the riding range.
You should fully charge the battery before a long journey.
Rough road conditions and hilly terrain will consume more energy.
Frequent change of speed will consume more energy.
Carrying more weight on the e-bike will consume more energy.
Keeping the tires properly inflated and keeping the e-bike clean
and well lubricated will save energy.
Making sure that both wheels move freely when brakes are not applied will
save energy. You should check brake adjustments frequently.
Pedaling as you ride will consume less electrical energy and increase the
riding range.
When the battery is turned off, your e-bike functions as a regular bicycle.
If you embark on a very long journey, you might want to turn off the
battery for long stretches where the road is level or downhill and pedal the
e-bike as a regular bicycle so that you can conserve electrical energy
stored in the battery.

13
Care and Maintenance for Your New e-Bike
You should, in general, take care of your e-bike the way you would with a regular
bicycle by keeping it dry, clean and the moving parts well lubricated. You should also
avoid parking your e-bike in exposed areas whenever possible.
You should check the effectiveness of the brakes before each use.
For your e-Bike, you should also take note of the following:




Special Care for the Battery and the Charger








Use only the supplied charger to charge your battery. Do not use an
unauthorized substitute. If your charger is lost or damaged, contact your
dealer to order a replacement.
Do not open or alter the battery or the battery charger.
Do not place the battery near fire or corrosive substances. Do not
immerse in water or other liquids.
Avoid subjecting the battery from high temperatures, such as directly
under the hot sun, for prolonged periods of time.
Do not connect (short circuit) the two poles of the battery.
After much use, your battery's charge holding capacity will decrease. If you
find that your battery does not hold sufficient charge even for short trips,
you should contact your dealer to order a replacement. Under normal use,
the battery will undergo 500 charging and discharging cycles.
If the battery will not be used for an extended period of time, charge it
fully and recharge it every 3 months. Store it in a cool place.
Your e-bike battery is engineered with precision for high capacity and
long useful life. We do not recommend that you use it to power other
electrical devices. Improper use of the battery will damage the battery
and shorten its useful life and may cause a fire or an explosion.
Your e-bike is designed for regular country road use for a single person.
Using your e-bike for extreme maneuvers, such as extreme off-road use,
jumping, or carrying the excessive load will damage the e-bike and could
cause serious injury.
Do not use high-pressure water streams to clean your e-bike, as water
might seep inside the motor or the wiring compartment and cause rusting
of electrical parts or short circuits.
Avoid parking your e-bike outside when there is rain or snow. At the end
of a trip where there was rain or snow, bring the e-bike inside and use a
clean, dry towel to eliminate any wetness.
Be sure you do not lose both key. If you lost one key,
you should immediately make a copy as a back-up. If you lost both keys
, you will be unable to remove the battery from the e-bike.

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Specifications
The following assumes an 60kg (176 lb) load (rider weight + any carry-on weight) on a
flat road at 25km/h(15mph):
Maximum Riding Range in Pedal Assist Mode : 80km ( 50miles) / 100km
(62 miles)
Maximum Riding Range in Hand Throttle Mode: 40km (25miles) / 50km
(31miles)
Frame Construction: Aluminum Alloy
Wheelbase: 1110mm
Gear Range: 7-speed type / 8-speed type
Tire Model: 20" (508.0mm)
Climb Grade: 30 degree
Max load: 150kg (330 lb)
Max Speed: 35kmph (22mph) / 40kmph (25mph) / 45kmph (28mph)
Power: 500W / 750W
Battery Capacity: 10.4Ah/ 12.8Ah
Battery Charger Input Voltage: 110/220 volt AC
Battery Operational Temperature: 0°to 40°Celsius (32°to 104°Fahrenheit)
Battery Life: Approximately 500 complete charge/discharge cycles

15
Safety
These safety precautions are provided for your benefit to protect you and those around
you. Please read and follow them carefully to avoid unnecessary injury, damage to the
product, or damage to other property.
Battery
Battery Charger

Trouble Shooting
As one or more causes of failure might lead to the failure phenomenon, you should
find out the true cause(s) and then take the appropriate solution(s) to rectify the
problem. In case of doubt, please consult a qualified technician for service, repairs or
maintenance.
Failure Phenomena
Causes of Failure
Solutions
Can not turn on the e-bike
 Battery is off
 The Battery is out of power
Battery aging or damaged
Poor contact of display line
Failure of computer
Failure of controller
 Turn on the battery
Fully charge the battery
Replace the battery
Reconnect the display
Replace the computer
Replace the controller
Pedal assist doesn’t work
Gear doesn’t work well
Brake doesn’t work well
Display doesn’t light on
Failure of speed sensor
Rear derailleur mismatch
Brake caliper mismatch
Brake Disc is bent
Poor contact of display line
replace speed sensor
Adjust rear derailleur
Adjust brake caliper or disc
Reconnect the display line
Can not adjust the speed
Speed is less than
10km/h
Battery’s voltage is too
low
 Throttle governing bar is
damaged
Poor contact of the
controlling line
Spring failure or being
locked
Fully charge the battery
Replace the throttle
governing bar
Replace the spring
e-Bike’s mileage is
obviously inadequate
after fully charged
 Inadequate tire pressure
Failure of charger
The battery cannot be fully
charged
Failure of controller
Battery aging or battery
damaged
 e-Bike has not been well
assembled
Too much upgrade road
Strong wind
Bad road
Overweight
Too many braking times
Temperature is too low
Inflate tire with appropriate
air pressure
Repair the charger
Examine and repair the
controller
Replace the controller
Replace the battery
Re-adjust the e-Bike
Boost the e-Bike by
manpower
Warm the battery above 0℃
(32℉)
Wheel hub stop running after
switching on the power
The connection of battery is
loosen
Poor contact of controlling
line
 The connection of wheel hub
is loose or damaged
 The protective board of the
battery is broken
Re-connect the battery
Replace the connection
line
Replace the battery’s
protective board with a new
one

Manufacturer: Shenzhen Engwe Intelligent Technology Co.,Ltd.
Address: Room 207, Jiangnan Building, Yongxiang Rd, Bantian St, Longgang Dist,
Shenzhen, Guangdong, China
Post Code: 518129
Email: [e-mail]
The manufacturer reserves the right to change the features of the product without prior
notice.