Denver Orus E-POWER PRO X7M 27.5 Series Specification sheet

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E-POWER PRO X7M
27,5 (E3700-V8100)
INSTRUCTIONS FOR USE AND MAINTENANCE
MODE D'EMPLOI ET D'ENTRETIEN
MANUALE D’USO E MANUTENZIONE

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USER’S MANUAL FOR
E Power Pro X7M 27,5 (E-3700/V-8100)

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Congratulations on your purchase of this E-Power Pro X7M 27.5 (E3700/V8100). It has been carefully
designed and manufactured according to the latest international quality standards, including:
EN 14764-2005
EN 15194-2009+A1
ISO 4210
Please read this instruction manual carefully and thoroughly before riding.
It contains important information on safety, and maintenance.
It is the owner’s responsibility to read this manual before riding.
Should any original component prove defective in terms of workmanship within its warranty period, we
will replace it. Warranty period for the electric bikes is as follows.
Frames and Forks: - 5 years
Electrical Components: - 2 years with proper care and maintenance
All other components: - 2 years
This warranty does not include labors and transportation charges. The company cannot accept any
responsibility for consequential or special damage. This warranty applies only to the original retail
purchaser who must have a proof of purchase in order to validate any claim. This warranty applies only in
the case of defective components and does not cover the effects of normal wear, nor damage caused by
accident, abuse, excessive loads, neglect, improper assembly, improper maintenance or the addition of
any item inconsistent with the original intended use of the bicycle.
No bicycle is indestructible and no claims can be accepted for damage caused by improper use,
competition use, stunt riding, ramp jumping and leaping or similar activities. Claims must be submitted
through your retailer. Your statutory rights are not affected.
The company reserves the right to change or amend any specification without notice. All information and
specifications within this brochure are correct at time of printing.
Ⅰ. Conditions for riding:
This E-Power Pro X7M 27.5 (E3700-V8100) is designed for riding on road or riding on a paved surface
where the tyres do not lose ground contact. It must be properly maintained according to the instructions
found within this book;
The maximum weight of the rider, bike and bags must to be less than 100kg.
Safe cycling and safety tips:
Before you ride this e-bike, always make sure it is in a safe operating condition. Particularly check that
your:

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•Nuts, bolts, quick-release and parts refastened tight and not worn or damaged.
•Riding position is comfortable.
•Brakes are operating effectively.
•Steering is free with no excessive play.
•Wheels run true and hub bearings are correctly adjusted.
•Wheels are properly secured and locked to frame/fork.
•Tyres are in good condition and inflated to correct pressure.
•Pedals are securely tightened to pedal cranks.
•Gears are correctly adjusted.
•All reflectors are in position.
WARNING WHEELS: Every six months, your pedal electric assistance bicycle should be
professionally checked to ensure that it is in correct and safe working order. It is the responsibility of the
rider to ensure all parts are in working order prior to riding.
REGULAR ATTENTION MUST BE PAID TO THE SPOKE TENSION.
Warning: You are warned that you assume the risk for personal injury, damage or losses if
you breach the above conditions and, the warranty will be void automatically.
Ⅱ. Name of E-Power Pro X7M 27.5 (E3700/V8100) Components (Fig 1)

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(Fig.1.1)
Assembly instruction
THIS PRODUCT MUST BE ASSEMBLED BY A QUALIFIED TECHNICIAN AND SHOULD NOT BE ATTEMPTED
BY ANY ONE WHO IS NOT TRAINED
Ⅲ. MANUAL FOR THE ELECTRIC PARTS OF THE E Power Pro X7M 27,5 (E3700/V8100)
1. Rim
2. Tyre & tubes
3. Spokes
4. Disc brake
5. Suspension fork
6. Front hub
7. Handlebar & stem
8. Brake lever
9. Grip shifter
10. Frame
11. Seat clamp
12. Seat post
13. Saddle
14. Crank set
15. Pedal
16. Chain
17. Kickstand
18. Rear derailleur
19. Rear hub
20. Freewheel
21. Rear derailleur
22. Grip
23. Battery
24. Controller
25. Battery lock
26.Charging port
27.Motor and Speed sensor
28. Display

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The rider must pedal forward to obtain any assistance from the motor. This is an important safety feature.
This electric pedal assistance bikes will provide assistance up to 25 Km/h, after that the motor will cut out.
You may go faster but must do so under your own effort without the electric assistance.
To start the e-bike turn on the main switch on the side of the battery, the LCD on the handlebar panel will
light up. The motor will not work until you pedal a full revolution of the chain wheel. This feature protects
the motor and controller from damage and extends the service life of the electric components.
Contents
1. Structure of an electric assistance bike
2. Important safety cautions
3. Operation
4. Battery installation & usage.
5. LCD and function
6. Using and maintaining the battery
7. Using and maintaining the charger
8. Using and maintaining the motor.
9. Maintaining the controller.
10. Maintaining the power-off control of the brake lever
11.. Simple troubleshooting
12. Electric circuit diagram and specifications
13. Main technical specification sheet
1. Structure of this E-BIKE (See partⅠ.Fig 1~1.1)
2. Important safety cautions:
• We strongly advise wearing an approved helmet, which meets local standards.
•Obey local road rules when riding on public roads.
•Be aware of traffic conditions
•The rider must be over 14 years old.
•Have your bike serviced only by authorized bicycle shops.
•Regular servicing will ensure a better and safe riding performance.
•Do not exceed more than 100kg load on bicycle, including rider himself.
•Never have more than one rider on the bicycle.
•Ensure regular maintenance is carried out on the bike according to this owner’s manual
• Do not open or attempt maintenance on any electrical components yourself. Contact your local
bicycle specialist for qualified service and maintenance when needed.
•Never jump, race, perform stunts or abuse your bicycle.
•Never ride under the influence of intoxicating drugs or alcohol.
•We strongly recommend using lights, when riding in the dark, fog or poor visibility.
•When cleaning this bike, please wipe the surface with a piece of soft cloth. For very dirty areas you
can wipe it with a little neutral soap and water.
Warning: do not wash this electric bike direct with spraying water especially pressure washers.
Avoid water entering electric components as this may result in damage of the electric components.

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3. Operation
E-Power Pro X7M 27.5 is a revolutionary transport means, applying aluminum frame, Li-ion battery, a
super high efficiency electric central motor and controller with electric pedal assistance system, to
support normal pedaling. The above-mentioned equipment will ensure safe riding with excellent function
and performance. It is important for you to note the following guidelines to ensure getting the best
possible experience from your electric bicycle.
Checklist before riding
3.1.1 Please ensure tyres are fully inflated as indicated on the tyre wall, before riding.
Remember, performance of the bike is directly related to the weight of the rider and baggage/load,
together with the stored energy in the battery;
3.1.2 Charge overnight, prior to riding the next day;
3.1.3 Apply chain oil periodically and clean if dirty or gummed up, using degreaser, then wipe clean and oil
bicycle chain again.
Battery installation & usage
The electric bikes have the battery positioned onto the frame down tube (the battery pack is directly
connected to the controller box which is under battery bottom.
4. Lift the battery above the frame down tube, aligned position of battery slides then put the battery
case inside the slot, ensure a snug fit, then lock it tightly. Fixing the battery well, use the key to lock
the battery with slide. (Fig 3.1~3.3)
(Fig. 3.1)
(Fig. 3.3)
(Fig. 3.2)

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5. Refer to the battery lock and unlock, see the
following pictures for reference.
From the initial position 12 o’clock (where the battery
and tube is locked), insert the key into the key slot,
and turn it clockwise to position 3 o’clock (Then
the battery is unlocked).
On the contrary, you can unlock it. (Fig 3.4)
4.1. Battery charge
If an AC outlet is available within reach of your bike, you can charge your bike directly with the battery still
attached to the bike. The charging port is covered by a plastic cap (Fig 4.3). Please open it then you will
find two ports, the left round one is for charge directly (Fig 4.4). The right one is originally design for USB,
but it wastes the power greatly, so now although it exists, but actually it cannot be used, please neglect it.
Removing the battery is useful for charging in a location where the bicycle may not fit or when no
reachable AC power supply exists at the place where the bike is parked
Before removing the battery from the bike, you need to unlock as following steps:
* Turn it clockwise from 12 o’clock to 3 o’clock position. (refer Fig 3.4)
* Remember to take off and care about the key after you withdraw from the battery!!!
(Fig. 4.4)
(Fig. 4.3)
(Fig. 3.4)

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5. LCD looking with Function
Speed mode
Lamp
Battery indicator
PAS level
Mileage mode
Mileage information
Speed display
ERROR code
Brake

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5.1 Power On/Off
Press and hold Power button for 1 second can turn on/off the display. The Display can
automatically shut down when there is no operation & ride for 5 minutes.
5.2 Assist level operating
Short press UP/DOWN button can change the assist level. Top assist level is 5, 0 for
neutral. Level quantities can be adjusted according to the customer requirements.
Assist operating
5.3 Speed mode switch& Mileage mode switch
Short press POWER button can change the speed mode & the mileage mode, Speed->AVG
Speed->MAX Speed->Trip->ODO-> Time.
Briefly press the POWER button, until the trip mode appears to reset the partial km, press
"+" and "-" at the same time.

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Speed mode switch& Mileage mode switch
*If there is no operation for 5 seconds, display will return Speed (Real-Time) display
automatically.
5.4 Backlight On/Off
Press and hold UP button for 1 second can turn on/off the backlight.
The motor does not work when the battery voltage is low. Display still can keep the headlight on for
a while when E-bike is in riding.
5.5 “6km/h” walk
Press and hold DOWN button for 2 seconds can get into walk mode, speed display 6 km/h, out of
the mode when release the button.
Time
ODO
Trip
MAX speed
Speed
AVG speed

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5.6 Error code define
The “800S”can give warning message when E-bike exist error, LCD display icon and the error
code in speed position, error code is from 01 E~07 E, see the definition on the table here below.
Error Code
Error description
Handle
0x21
Current abnormal
0x22
Throttle error
Check the connection of throttle.
0x23
Motor phase lost
0x24
Hall error
Check the hall connection
0x25
Brake error
Check the brake connection.
0x30
Controller communication error
1Assembly instructions
Please pay attention to the screw’s torque value, damaged caused by excessive torque is not within
the scope of the warranty.

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There are 2 directions for the clamp installation, forward or backward.
Different assembly methods will need different cable length.
Clamps suit for 3 sizes of handlebar, 31.8mm, 25.4mm, 22.2mm, there are transfer rings for
25.4mm and 22.2mm, transfer rings must be assembled with the special directions, pay
attention to the green arrow below.

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2Warning
There is waterproof membrane inside the sound hole. Don’t insert sharp object into the hole, it
will cause waterproof failure.
Sun exposure may cause high temperature indicate, this is not display’s failure.
3 Output wire instructions
1、Red wire : Anode(24v/36v)
2、Blue wire : Power cord to the controller
3、Black wire : GND
4、Green wire : RxD (controller -> display)
5、Yellow wire : TxD (display -> controller)

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6. Using and maintaining the battery
Advantages of Li-ion battery. this e-bikes is supplied with high quality Li-ion batteries, which are light and
create no pollution to the environment, as a typical green energy source. As well as the above features,
the Li-ion batteries have the following advantages:
• charging without memory effect
• big electric energy capacity, small volume, light in weight, with large current output, suitable for high
power vehicles.
• long life
• a wide working range of temperature: -10°C to +40°C
To ensure a longer battery life and protecting it from damage,
please use and maintain it according to the guideline below:
6.1 During your riding, when you find the power decreased to 20%
on the LCD. (See the Fig 6.1), the battery must be charged in short time!
6.2. Remember to charge the battery full before you ride for a
long trip!
You can see the power station on display (Fig 6.1). Or press the
button on the top of battery case (Fig 6.2), when the power is full,
the four green lights are all bright, when there are only two green lights
bright on the bottom, you need to charge immediately
6.3 If the bike is ridden less frequently or stored for quite a long
time, it must be fully charged every 2-3 months.
Warning:
1) The battery life may be reduced after long storage without regular charging as instructed above,
due to natural discharge;
2) Never use any metals directly to connect the two poles of the battery, otherwise, the battery will
be damaged due to short circuit.
3) Never put the battery near to fire or heat source.
4) Never strongly shake, punch and toss the battery.
5) When the battery pack is removed from the bike, keep it out of reach of children, to avoid any
unexpected accident.
6) The battery is forbidden to be disassembled.
(Fig. 6.1)
(Fig. 6.2)

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7. Using and maintaining the battery charger
Before charging the battery, please read the owner’s manual and the charger manual accompanied with
your bike, if any. Also, please note the following points regarding battery charger.
* Do not use this charger in an environment of explosive gas and corrosive substances.
* Never shake, punch or toss the battery charger, to protect it from damage.
* Always protect the battery charger from rain and moisture!
* This battery charger should be normally used under temperature, ranged between 0°C to +40°C
* The charger is for bidden to be disassembled.
* You should only use the charger provided with the electric bike, otherwise damage could occur to your
battery and void the guarantee.
* When charging, both battery and charger should be minimum 10cm away from the wall, or under a
condition of ventilation for cooling. Place nothing around the charger, while in use!
Procedure for charging
Please charge the bike battery according to the following procedure:
7.1 The battery can be charged by the AC, the switch is not necessary to be turned on.
7.2 Insert the charger output plug into the battery securely and then, plug the main cable of the charger
into a reachable AC outlet;
7.3 When charging, the LED on the charger will become red, showing the charging is on. When it becomes
green, you can finish charging the battery.
7.4 To finish charging, you must disconnect the charger input plug first from the AC outlet, and after that,
disconnect the charger output plug from the battery pack. Finally, close the cover on the charging socket
of the battery pack and check the socket, is covered
8. Using and maintaining the electric motor
8.1 Our intelligent e-bikes are programmed to start with the electric assistance after rotation of the chain
wheel.
8.2 Do not use the bike in flood waters or thunderstorm. Do not immerse the electric parts in water.
Otherwise, the electric components may be damaged.
8.3 Avoid any impact towards the motor, otherwise, the casting alloy aluminum cover and body may
break.
8.4 Make regular checks on the screws on both sides of the motor; fasten them even if they are just a little
bit loose.
8.5 It is necessary to check the cable connection to the motor.
9.Maintaining the controller
For our electric bikes the controller is usually equipped inside the battery pack holder.
It is very important to take care of this electronic component, according to the following guideline:

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9.1 Pay attention to protect from ingress of water and immersion in water, which may damage the
controller.
Note: If you think water may have got into the control box, please switch off the power immediately and
pedal without electric assistance. You can pedal with electric assistance as soon as the controller has dried
out.
9.2 Pay attention to protect from any strong shaking and punching, which may damage this controller
9.3 The controller should be used in normal working temperature range from -15°C to +40°C
Warning: Do not open the controller box. Any attempt to open the controller box, modify
or adjust the controller will void the warranty. Please ask your local dealer or authorized service specialist
to repair your bike.
10. Maintaining the power-off control of the brake lever*
This is a very important component for riding with safety. First, you should pay attention to protect it from
impact and avoid any damage. Second, make regular check on all bolts and nuts, and fasten them
securely.
11. Simple trouble shooting
The information below is for purpose of explanation, not as a recommendation for user to carry out repair.
Any remedy outlined must be carried out by a competent person who is aware of the safety issues and
sufficiently familiar with electrical maintenance.
Trouble Description
Possible Causes
Trouble shooting
After the main battery
switched on, the motor
does not generate
assistance when
pedaling.
1)the motor cable (waterproof
connection joint) is loose; 2) brake
lever did not return well, which keeps
the switch in “power off” position; 3)
battery fuse is broken; 4) the speed
sensor
is too far away from the magnetic
ring on the B.B. axle; 5) the
connection between the sensor and
the controller is loosen or not
connected well.
First of all, please check the battery if it is
empty. If yes, charge the battery immediately.
1) check if the connection is securely fixed. If
loose, joint them tightly. 2) make the brake
lever come back to its normal position with
care, without braking; 3) open the battery
pack top, and check if the fuse is broken. If
yes, please visit your vendor or authorized
service for installing a new fuse; 4) adjusting
the distance between the magnetic ring and
the sensor, to make sure the distance is
within 3mm; 5) fix tight the connection
between the sensor and the controller.

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The distance per charge
becomes short (Note:
performance of the bike
battery is directly
related to weight of the
rider and any
baggage/load / wind /
road / constant
braking ).
1) charging time is not enough; 2) the
environment temperature is so low
that it affects the battery working. 3)
frequently going uphill, or riding with
head wind, or on poor road
condition, 4) the tyres have low
pressure (to be inflated); 5)
frequently braking and starting. 6)
battery has been stored without
using for quite a long time.
1) please charge the battery according the
instruction (chapter 7.3); 2) in winter or
under 0°C, you’d better store the battery
inside the house; 3) it will be normal if the
riding conditions are improved as regular; 4)
pump the tyres and ensure tyres are fully
inflated to 45psi for your bike; 5) it becomes
normal when the riding situation will be
better. No worry about such a trouble; 6)
make regular charging according to this
instruction manual (refer to Chapter 6.3) If
the above has no effect, please contact your
vendor or authorized service.
After plugging the
power outlet, no charger
indicator LCDis lit.
1) trouble from the power outlet;
2) poor contact between charger
input plug and power outlet;
3) the temperature is too low.
1) check and repair the power outlet.
2) check and insert the power outlet tightly.
3) charge it in house.
If the above has no effect, please contact your
vendor or authorized service
After charging over 4-5
hours, the charger
indicator LCD is still red,
while the battery is still
above not full (Note: it is
very important to charge
your bike strictly
according to this
instruction stated in
Chapter 7, to avoid any
trouble and damage
occurred to your bike.
1) environment temperature is 40°C
and above.
2) environment temperature is under
0°C.
3) failed to charge bike after riding,
resulting in over discharge.
4) the output voltage is too low to
charge the battery.
1) charge the battery in an area under 40°C,
or according to this instruction chapter 7;
2). charge the battery inside the house, or
according to this instruction chapter 7;
3) please well maintain the battery according
to the Chapter 6.3 to avoid natural
over-discharge;
4) no charging when the power supply is
lower than 100V.
If the above has no effect, please contact your
vendor or authorized service.
There is no speed/KM
show on the LCD
The magnetic ball point on the wheel
spoke is in too far away distance from
the wheel speed sensor (fixed to
frame chain stay or front fork), which
make the sensor cannot get any
signals of the revolving wheel.
Check the distance between the magnetic ball
point and the wheel speed sensor, and make
sure the distance should within 5mm.
12.Diagram and specification.
We reserve the right, without further notice, makes modifications to the product. For further advice,
please contact your vendor.

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