- Thank you for choosing an E-bike equipped with E-P3 Polini motor
- Only drive your vehicle using protective clothing
1.1- Important information for your safety
1.2- Battery cleaning
1.3- Battery key
2.0- E-P3 POLINI system features
2.1- Turn E-P3 system on
2.2- Turn E-P3 system off
3.0- Charging the battery
3.1- Data sheet
3.2- About the charger LED lamp
3.3- About the battery charging
3.4- Installing and removing the battery
4.0- Display
4.1- Controls
4.2- Display
4.3- Switch the display off
4.4- Headlights – installation of additional lights
5.0- Pedal-assist setting
5.1-Advices to optimize the battery range
5.2- Walk assist mode (walk)
6.0- Servicing and errors research
7.0-Assembly of the water bottle holder
8.0-Firware update
9.0- Disposal
For safety, carefully read this users’ manual before using and follow it for correct use.
• Go to the place of purchase or to a bicycle dealer for information on the installation and adjustment of the products
which are not included in this manual.
• Do not disassemble or alter this product.
• Use the product according to the local laws and regulations.
1.1- Important Safety information
Handling the battery
• Do not deform, modify and disassemble the battery. Do not apply welding on the battery itself. Doing so may cause
leakages, overheating, bursting or ignition of the battery.
• Do not leave the battery near sources of heat such as heaters. Do not heat the battery or throw it into the fire.
Doing so may cause bursting or ignition of the battery.
• Do not subjects the battery to strong shocks or throw it. Doing so may cause bursting or ignition of the battery.
• Do not place the battery into fresh or sea water and avoid the battery terminals getting wet. Doing so may cause
bursting or ignition of the battery.
• Use only the proper Polini charger to recharge the battery and respect the indicated charging conditions. Doing so
may cause bursting or ignition of the battery.
• If any liquid leaking from the battery gets into contact with your eyes, immediately wash the affected area with
clean water without rubbing your eyes and seek medical advice immediately. If this is not done the battery liquid may
damage your eyes.
• Do not recharge the battery in places with high humidity or outdoors. Doing so may result in electric shock
• Do not insert or remove the plug while it is wet. If this is not observed, electric shock may result. If there is water
leaking out of the plug, dry it thoroughly before inserting it.
• If the battery does not become fully charged after 6 hours of charging, immediately unplug the battery from the
outlet to stop charging and contact the dealer. If this is not observed it may cause bursting or ignition of the battery.
• Do not use the battery if it has any noticeable scratches or other external damage. If this is not observed it may
cause bursting or ignition of the battery.
• The operating temperatures ranges for the battery are given below. Do not use the battery with temperature
outside these ranges. If the battery is used or stored in temperatures outside these ranges, fire and injury or operation
problems with may occur.
1. During use: –20 °C /+ 60 °C
2. During charging: 0 °C /+ 45 °C
To ensure safe riding
• To avoid accident, when the bicycle is moving, do not dedicate too much attention to the display of the cyclecomputer.
Using the product safely.
• Be sure to remove the battery before wiring or connecting the parts to the bicycle. Otherwise an electric shock may
To ensure safe when riding
• Observe the instructions in the user’s manual for the bicycles
Using the product safely
• Periodically check the battery charger, particularly the wire, plug and the case to check any damage. If the charger or
adapter are broken, do not use them till they have been repaired.
• These device is not intended for use by persons (including children) with reduced physical, sensor or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety.
• Do not allow children to play near the products.
How to handle the battery
• Do not leave the battery in a place exposed to direct sunlight, inside a vehicle on a hot day, or other hot places. This
may result in battery leakage.
• If any leaked fluid gets on your skin or clothes, wash it off immediately with clean water. The leaked fluid may
damage your skin.
• Store the battery in a safe place out of the reach of infants or pets.
• If any malfunctions or other problems occur, contact the dealer.
• Never attempt to modify the system yourself, as it may cause problems of malfunctioning.
NOTE: Using the product safely
• To install and adjust the product, consult a dealer.
• Do not turn the bicycle upside-down. The cycle-computer or the switching switch may get damaged.
• Handle the products carefully, and avoid subjecting it to any strong shocks.
• When the battery is removed, the battery works as a normal bicycle. If the light is connected to the electric power
system, it does turn on.
• When charging the battery while it is mounted on the bicycle, be careful of the following:
- When charging, make sure that there is no water on the charging port or on the charger plug.
- Make sure that the battery is locked into the battery mount before charging
- Do not remove the battery from the battery when charging
- Do not use the battery with the charger mounted.
- Close the charging port when not charging
How to handle the battery
• When you carry a power-assisted bicycle in a car, remove the battery from the bicycle and place the battery on a
stable surface in the car.
• Before connecting the battery, make sure that there is not build-up water or dirt on the connector where the
battery will be connected.
• The use of a Polini genuine battery is recommended
Disposal information for countries outside the European Union
This symbol is valid in the European Union only. Follow the local regulation for the disposal of used
batteries. In case of doubt, contact the place of purchase or a bicycle dealer
1.2- Cleaning the battery
• Do not use thinner or other solvents to clean any of the products. These substances may damage the surfaces.
• Use a damp cloth, with the water well wrung-out, when cleaning the battery and plastic cover.
• Batteries are not guaranteed against natural wear or deterioration from normal use.
• This battery is designed to be fully waterproof and to be used when raining while properly installed on the bicycle.
Do not put the battery in contact with water when not installed on the bicycle because the electric terminals, in these
conditions, are not protected.
• Do not clean the bicycle using high pressure water jets. If the water penetrates inside the parts, may result some
1.3- Battery key
CAUTION: if you lose the keys, contact your dealer to replace the whole key lock.
2- Features of POLINI E-P3 system
The following information must be satisfied before using the E-bike propulsion system:
• Battery is charged, inserted and turned on
• Speed sensor is connected in accordance to the central movement and the magneto is properly placed.
When the speed of 25km/h is reached, the propulsion system disconnects automatically. The system turns on when
starting pedalling again and the speed is lower than 25km/h.
Power assist stops simultaneously with the stop of the rider’s pedalling. Quick re-start of the power assist upon
starting pedalling. Power assist system cooperates and harmonizes with rider’s output.
2.1- Turn E-P3 system on
1. Turn the battery ON using the on/off button
2. Select your preferred assist mode from 1 to 5 using the arrow buttons.
3. Assistance will start when the pedal start turning
4. Change the assist mode in accordance with the riding conditions
2.2- Turn E-P3 system off
To turn the system off, first switch the display off then turn the battery off.
1- To keep the travelling data updated on the
display, first turn the display off and then the
battery. On the contrary the travelling data on
the display are not saved properly.
2- By turning off the display only, the battery
remains ON for 2 hours with a low battery
3- It is not possible to turn the display off while
riding the bicycle.
3- Charging the battery
The battery is prearranged and designed to be used with E-P3 Polini system only. It’s the part that allows to store
energy and provide it to the electric motor when necessary.
Charging can be carried out at any time regardless of the amount of charge remaining, but you should fully charge
the battery at the following times. (Be sure to use the dedicated charger when recharging the battery at these
• The battery is not fully charged at the time of purchase. Before riding, be sure to charge the battery until it is fully
If the battery has become fully spent, charge it as soon as possible. If you leave the battery without charging it, it
will deteriorate before its time.
• If the bicycle will not be ridden for a long period of time, store it away with approximately 70% battery capacity
remaining. In addition, take care not to let the battery become completely empty by charging it for 2 hours every 3
Charging the battery only
1. Turn the battery off
2. Connect the battery charger’s power plug to the
3. Insert the charging plug into the battery's charging
port. Charge the battery on an indoors flat surface.
Charging the battery while installed onto the bicycle
1. Turn the battery off
2. Stabilize the bicycle to ensure that it does not
collapse during charging
3. Insert the battery charger power plug into the
4. Insert the charging plug into the charging port on
the battery mount.
WARNING: Charge the battery respecting the safety advises.
CAUTION: evoid any deposit of dirt on the connections of the battery chargers and connectors.
NOTE: remember that a battery fully discharged needs 4/5 hours to fully charge.
CAUTION: a possible interruption during the charging operation does no damage the battery.
CAUTION: After every charge, close the
the rubber on the battery plug.
3.1- Data sheet
Lithium ion rechargeable battery
Nominal tension
36 V
Nominal capacity
500 Wh
Working temperature
Charged: 0...+45 °C
Dead: -20...+60 °C
1 year: -20...+25 °C
Storage temperature
3 months: -20...+45 °C
1 month: -20...+55 °C
Air humidity
45...70 %
348*81*72.3 mm
2.656 Kg
• Use the POLINI specified charger and observe the specified charging conditions when charging the battery. Not
doing so may cause overheating, bursting or ignition of the battery.
• When removing the battery charger power plug from the outlet or the charging plug from the battery, do not pull it
out by the cord.
• When charging the battery while it is mounted on the bicycle, be careful not to trip over the charger cord or get
anything caught on it. This may lead to injury or cause the bicycle to fall over, damaging the components.
• If the bicycle is stored for an extended period of time immediately after purchase, you will need to charge the
battery before using the bicycle.
3.2- About the charger LED lamp
Charger connected into the outlet and battery under
charge – RED led Power/RED led charge
Charger connected into the outlet and battery
recharging (recharged ended) RED led Power/GREEN
led charge
Time to recharge a dead battery is about 5 hours
3.3- Indications of the battery charge level
After pushing the power on LED light button, the five LED lamps indicate the charge level. Each LED corresponds to
20% of capacity. You can check the current charging status on the LED lamp on the battery. When charging the battery
the LED lamps are blinking.
Charge level
0 - 20 %
20 - 40 %
40 - 60 %
60 - 80 %
80 -100 %
3.4- Removing and Installing the battery
CAUTION: always turn the battery off before removing or installing it.
Removing the battery
Unscrew the security screw.
Insert the key in the cylinder on the battery
To open it, turn the key while pulling the battery
Grab the upper side of the battery and remove it
from the holder.
Installing the battery
Insert the battery into the battery mount paying attention not to damage the rubber gasket.
First insert the upper part of the battery and then the bottom part of the electric connectors.
Press the battery until a click is heard to lock it. Battery may assembly even is the key is not inserted.
Proceed carefully and without too much
strength to avoid damaging the electric
Tighten the safety screw.
Remove the key and store it in a safe place.
DANGER – ATTENTION: Do not ride the bicycle with the key inserted, to prevent the battery from
falling out and avoid loosing the key.
CAUTION: Before riding your bicycle, make sure that the battery is locked in place and charging port
cap is closed.
4.0- Display
Using the display buttons you perfectly set the system functions of the pedal-assist bicycle. Your hand may rest on the
handlebar grip while the thumb activates the buttons of the service unit. The screens on the display provide
information about the driving conditions and assistance.
ATTENTION: to use the display while riding may distract the rider and accidents may results. Always follow
the road regulation.
4.1- Controls
The functions of the system of the pedal-assist bicycle are adjusted through the buttons of the Comfort service unit.
Note: the display may be set by the manufacturer to be assembled on the right or left side of the handlebar.
Consequently the direction buttons are inverted.
Buttons and Joystick of the Comfort service unit
Increase of the level of assistance;
press for more than 3 seconds: walk assist mode
Decrease of the level of assistance
Upper screen
To enter next screen exit from the modification mode
and confirm.
Elaborate highlighted value
To enter next right screen
Down screen
Switching the Comfort service mode ON/OFF
Short pressure: lights ON
Long pressure: lights OFF
4.2- Displays
Displays offer different information. Lateral movements of the joystick switch to another page. Some pages show
further screens that may reach with vertical movement of the joystick.
The main screen shows the following information:
Display of the current assistance
Triangular symbol: assist-walk activated.
Headlights symbol: it activates if the lights are ON.
Battery level indicator (each notch corresponds to 20% of the battery)
ATTENTION: notches in the battery symbol do not indicate the level.
How to read the display screens:
1. Screen symbol
2. Horizontal navigation position
3. Page content
4. Vertical navigation position: indicates the following pages and
displays the actual position.
Riding performance
Riding performance example
It displays the average Watt power generated by the rider.
Motor power
Motor power screen example
It displays the power provided by the pedal-assist electric motor in percentage respect to the
maximum power
Distance travelled in assist-mode
Example of distance travelled in assist-mode
It displays the average of the range to be travelled.
Warning: the average of the range is calculated in accordance with the distances covered in the
previous tours, so it is necessary to ride some kms to modify the data. The average is influenced
by the itinerary and by the level of assistance used.
Travelling distance
Example of travelling distance
It displays the travelling distance from the last reset of the data.
Many pages are included in this screen.
Average speed of the travelling distance
Example of the average speed of the travelling distance
> average speed
It displays the average speed from the last reset of the data
Maximum speed of the travelling distance
Example of the maximum speed of the travelling distance
>maximum speed
It displays the maximum speed from the last reset of the data
Example of data reset
Resetting of the travelling data. The travelling data. (average and maximum speed are
cleared and lost)
Joystick (T3): to move downwards and activate RESET function (RESET outline changes
its colour)
Press the Joystick to cleared up the data.
Switch the display off to save RESET in the motor.
Total travelling distance
Example of total travelling distance
It shows the total travelling distance covered with pedal-assist bicycle.
Another page follows to this screen
Total travelling distance / maximum speed
Example of the maximum speed
It displays the maximum speed in accordance with the total travelling distance
NOTE! Currently Blootooth does not have any active function.
Turned off
It It
Chest strap
Example of Bluetooth
It shows the Bluetooth connection options
OFF: Bluetooth is turned off
Smartphone: connection to a phone
Chest strap: connection to a chest strap
How to modify the current choice:
Move the Joystick backward and forwards.
Value is displayed
With a vertical movement of the Joystick another option will be shown.
Press the Joystick to activate the option
Variation is activated
By moving the joystick on the right or on the left you move to the next page
4.3- Turning off
Turn the Comfort service unit off
▪ Press button T4 for more than 2 seconds
 The service unit turns OFF
NOTE: it is not allowed to turn it off if the bicycle is moving.
4.4- Headlights – additional lights installation
Button T5 turns the lights ON and OFF, in accordance with the pedal-assist bicycle.
Turn the headlights ON
▪ Shortly press button T5
 Headlights are ON
 The enlightened icon indicates the normal lightening condition.
Turn the headlights OFF
▪ Press T5 button for more than 2 seconds.
 Headlights are OFF
 The enlightened icon switches off.
Additional lights installation
The motor body is equipped with a plastic block for the light wiring that must have the following features:
1. Lights voltage: 6 Vdc
2. The sum of the lights powers must not exceed
3. The block is provided with 2 cables fixing
points, + (pink) and – (black) .
Connect the + of the motor to the + of the front and
rear lights.
Connect the - of the motor to the - of the front and rear
4. To proceed with this connection, insert the
3+3 cables between the two small metallic
plates placed on the plastic block and tight
them using the proper screws
5.0- Assist-mode adjustment
The electric motor of your bicycle with assist –pedal helps your performace. There are several levels of assistance at
your disposal. You can travel without assistance too.
▪ Level of assistance may be adjusted using the service unit (T1 / T2)
▪ Level chosen is immediately activated
Active level is available through the lightened sections on the main menu of the display
Normal bicycle. Motor is not activated.
Level 1
30% assistance – recommended when travelling on level ground or long distance
Level 2
60% assistance - recommended when travelling on level ground/gentle slope for
medium/long distance covered
Level 3
120% assistance - recommended when travelling on gentle slope/uphill for medium
distance covered
Level 4
250% assistance - recommended when travelling uphill for medium/short distance
Level 5
400% assistance - recommended when travelling uphill for short distance covered
Turning the assist-mode ON
The display does not display any level of assistance
Press T1 button on the Comfort service unit.
Electric motor assists in the pedalling
In the display of the level of assistance, the first segment lights on
Increasing the assistance
1. Press button T1. Choose next level of assistance
 Electric motor assists in the pedalling significantly.
 In the display of the level of assistance, moves to the next segment
Travelling without assistance
Travel without assistance
1. Press button T2 till no segments are displayed.
 You are travelling without engine assistance
5.1- Suggestions to optimize the range
✓ Pedal: slow pedalling consumes a lot of energy; maintain a pedalling frequency higher than 70 rpm
to optimize the efficiency.
✓ Driving style: many hard braking and starts produce more consumption, when possible, prefer a
constant speed.
✓ Gear shifting: when starting and climbing it is better to use lower gears, while it is better to use a
higher gears only on adequate route and with proper speed.
✓ Tires pressure: keep the tires with the maximum allowed pressure to improve the range.
✓ Temperature and battery: battery range decreases when temperature lowers (because the electric
resistance increases) so in winter the range is reduced.
Weight: reduce the bicycle weight and luggage at the minimum.
NOTE: if the battery charging level is low, the motor cannot exploit all its power. In this case, for a longer battery
range, it is recommended to set a low level of pedal assistance.
5.2- Walk mode
To start or walking the e-bike you may use the WALK assist mode. Walk assist function may be activated for speed
lower than 6 km/h and it can be used to walk the bicycle. When walking the bicycle, move closed to it. The WALK
assist mode moves the bicycle.
ATTENTION! The WALK assist mode moves the bicycle. Grab the handlebar and brake. Your strength and
the Walking function may accelerate the bicycle significantly. Pedals may move and injury you during their
movement! Do not use Walk assist mode for a long time.
Turn the walk assist mode ON
Keep button T1 pressed
Walk assist mode is activated and it moves the bicycle.
The triangle symbol of the walk assist mode is displayed in the main menu.
ATTENTION: level of assistance must not be zero.
Turn the walk assist mode OFF
▪ Release button T1
 Walk assist mode is OFF
 The triangle symbol of the walk assist mode is not be displayed in the main menu anymore.
6.0-Servicing – Errors list
Lubricate the e-bike gear every 5000 km for maximum noise reduction.
-remove the crown-holder if necessary
-unscrew the cap of the grease tank and add about 2/3 grams of Polini grease.(item 955.435.001)
-Close the part paying attention to tight the crown holder screw properly (5/6Nm torque)
Display does not read the speed.
Verify the distance between speed sensor and magneto (maximum 15mm)in the position indicated by the line. If it is
not enough or too much or if the speed sensor hasn’t been properly connected the E-bike motor works in the
emergency mode.
In this case, loosen the screw of the magneto and fix the magneto on the ray so that it is at a correct distance respect
to the speed sensor symbol. If even after this operation the speed has not been displayed, contact an authorized
bicycles’ dealer.
E-Bike does not work
First turn the e-bike off, remove the battery from its place (Section 3.4). Turn on end off the disconnected battery.
Place the battery and turn the e-bike on. If it does not work contact your dealer.
7.0-Assembly of the water bottle holder
Insert the water bottle supports in their housing
on the battery.
Place the water bottle holder on the supports
and screw the dowel using the key supplied till
the connection feathers of the holder are fixed
on the battery and the water bottle holder does
not slide on the guide anymore.
Tight the upper dowel for your safety
The water bottle holder is a Polini patented
Internet connection and a cable with micro USB outlet are required to update the firmware.
Remove the plastic cover, the aluminium cap and connect
the cable to the plug in the right direction.
Updated Firmware is available on www.polini.com
Besides the Firmware it is possible (with the cable connected to the motor) to download a software to modify the
mounting side of the right or left display and, in case of variation of the tire size, to set the speed detector.
9- Disposal
In accordance with the European 2012/19/EU guidelines (waste electrical appliances) and in accordance with the
European 2006/66/EG guidelines (used or defective batteries), waste materials must be separately collected and
Old machines, spare parts or packaging are produced with recyclables materials. The owner is obliged to dispose them
in accordance with the laws and the environmental impact.
2.2 Manual Version
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