Original User Manual
Pedelec Impulse 2.0 Ergo
English
Item no. 1973K0014009
Contents
1 Safety 4
1.1 General 4
1.2 Statutory requirements 5
1.2.1 Requirements for the rider 5
1.3 Battery 5
1.4 Motor 6
1.5 Adjustments/maintenance/repair 6
1.6 Transportation of the Pedelec 6
1.6.1 The Pedelec and your car 6
1.6.2 The Pedelec on trains 6
1.6.3 The Pedelec on aeroplanes 6
2 Components of the Pedelec 8
3 First steps 9
3.1 Checking the tightening torques 9
3.2 Fitting the pedals 9
3.3 Adjusting the saddle height 9
3.3.1 Clamping bolt 9
3.3.2 Quick-release device 9
7.3 Programming and settings 22
7.3.1 Drive data 22
7.3.2 Delete trip data 23
7.3.3 Delete overall data 23
7.3.4 Device settings 23
7.3.4.1 Display 23
7.3.4.2 Drive 24
7.3.4.3 Miscellaneous 24
7.3.5 Personalize 24
7.3.6 Target cost 25
7.3.7 ERGO settings 25
7.3.7.1 Target heart rate 26
7.3.7.2 Warning heart rate 26
8 NuVinci Harmony gears 26
8.1 Automatic mode 27
8.2 Manual mode 27
9 The motor 28
9.1 Operation 28
9.2 Range 28
9.3 Riding your Pedelec eciently 29
9.4 Warranty and service life 29
4 Quick start 10
4.1 Riding in the ERGO power-assist mode 11
5 Battery 14
5.1 Charging the battery 14
5.1.1 Removing the battery 15
5.1.2 Charging the battery 15
5.1.3 Installing the battery 16
5.2 Battery information system 17
5.2.1 Checking the charge state 17
5.2.2 Checking the capacity 17
5.3 Battery management 18
5.3.1 Sleep mode 18
5.4 Warranty and service life 18
5.5 Storage 19
5.6 Shipping 19
5.7 Disposal 19
6 Charger 19
7 Control unit and display 20
7.1 Control unit 20
7.1.1 Switching on/o 20
7.1.2 Push assist 20
7.1.3 / buttons 20
7.2 Display 21
7.2.1 Assistance indicator 21
7.2.2 Battery charge state indicator 22
7.2.3 Remaining range indicator 22
7.2.4 Units 22
10 Troubleshooting 30
11 Cleaning 32
11.1 Battery 32
11.2 Motor 32
11.3 Display 32
11.4 Control unit 32
11.5 Charger 32
12 Technical data 33
Introduction
CD with important information
Thank you for choosing the Impulse Ergo Pedelec om
our company. This bike is equipped with an innovative
electric drive that assists you when you are cycling. This
will make your trip much more enjoyable if you are riding
up hills, carrying loads or riding into the wind. You can
decide yourself how much you want to use it. This bike
has all of the nctions of the Impulse Pedelec 2.0, but has
one special feature: The Ergo System.
With this bike, your heart rate controls the drive when
you use the ERGO mode. If your heart rate falls below
the preset value, the assistance provided by the drive is
automatically reduced. If your heart rate rises above the
set value, the assistance provided by the drive increases.
This enables an optimal heart rate range to be maintained
whilst riding, thus avoiding dangerous peaks in the heart
rate and training your endurance.
This system is complemented by NuVinci Harmony gears.
If your speed reduces or increases, the gears automatically adjust the gear ratio in automatic mode. This means
that you always pedal with the same pedalling cadence
irrespective of the speed.
On the enclosed CD, you will nd versions of the User
Manual for the Pedelec Impulse 2.0 Ergo in various languages. In addition, the CD also contains the General User
Manual with general information on the bike technology.
You can download the latest version of the User Manual
om the Internet. There you will also nd manuals for the
individual bike components.
You can run the CD using any commercially available PC or
laptop. Proceed as follows:
METHOD A:
1. Insert the CD.
2. Double-click on the le shelexec.exe using the le
mouse button.
3. Select the desired language.
4. Select “Open User Manual om CD” or “Check for new
version of User Manual online”.
METHOD B:
The pedalling cadence describes how many times the
pedal crank of your Pedelec revolves in one minute.
Experts simply call it cadence.
The purpose of this User Manual is to help you get the
most out of your Pedelec Impulse 2.0 Ergo and use it correctly.
Structure of the User Manual
If you want to get started right away, refer to the brief
introduction in ➠ Chapter 4 “Quick start”.
The most important components of your Pedelec are described in detail in the following chapters.
You will nd the technical data for your Pedelec Impulse
2.0 Ergo in ➠ Chapter 12 “Technical data”.
The information in this User Manual specically refers to
your Pedelec Impulse 2.0 Ergo. For general information,
on the bike technology, for example, refer to the General
User Manual (CD).
1. Insert the CD.
2. Using the mouse, right-click once on: “Open folder to
display les.”
3. Double-click on “Start” using the le mouse button.
4. Select the desired language.
5. Select “Open User Manual om CD” or “Check for new
version of User Manual online”.
To call up the les, you need the program Adobe Reader. It
has been included on the CD or can be downloaded ee of
charge om www.adobe.com.
If you would like a printed copy of the General User Manual, you can have the document sent to you ee of charge
by requesting it om the following address:
Derby Cycle GmbH
Siemensstrasse 1-3
49661 Cloppenburg, Germany
+ 49 (4471) 966-0
info@derby-cycle.com
Original User Manual | Pedelec Impulse 2.0 Ergo 3
1 Safety
› Even if you can't wait to go for a ride, in the in-
terest of your own safety you should at least read
➠ Chapter 1 “Safety” and ➠ Chapter 4 “Quick
start” before use.
› Moreover, we strongly recommend reading this
manual and the General User Manual in their
entirety.
Keep this User Manual for your information and
ture reference.
The User Manual contains the following symbols that denote dangers or important information.
WARNING
regarding possible physical injury, increased
risk of falls or other injuries.
NOTE
regarding possible damage to property or the
environment.
IMPORTANT ADDITIONAL INFORMATION
or special information on using the Pedelec.
1.1 General
› If children are present, keep a close eye on them,
especially if there is a possibility they could
insert objects into the motor through apertures
in the housing. This poses the danger of fatal
electric shock.
› If you have reason to suspect a safety problem
with your Pedelec, do not ride it, and make sure
nobody else can use it until you have it checked
by a specialist cycle shop. Safe use is not possible if electrical components or the battery show
signs of damage.
4 Original User Manual | Pedelec Impulse 2.0 Ergo
If you wish to make any adjustments to the ride characteristics of your Pedelec, please consult your specialist cycle shop.
lations exist in other countries, also inside the EU in
individual cases. Before using your Pedelec abroad,
nd out about the applicable legislation in the relevant country.
1.2 Statutory requirements
The Pedelec, like all other bikes, must comply with
the national regulations for road safety. Please observe the relevant explanations and general information provided in the General User Manual (CD).
These statutory requirements apply for a Pedelec:
• The motor is designed only to provide pedal-
ling assistance, i.e. it can only “assist” the rider
when he/she turns the pedals.
• The average motor output must not exceed
250 W.
• As the speed increases, the rate at which the
motor output reduces must also increase more
intensely.
1.3 Battery
› Never attempt to repair your battery. Specialists
are responsible for performing such repairs. If
your battery is damaged, contact your specialist
cycle shop. The specialists here will discuss the
next steps with you.
› Never transport damaged batteries. The safety
of damaged batteries cannot be guaranteed.
Scratches and small chips in the housing do not
constitute serious damage.
› Have the battery checked at a specialist cycle
shop if you have fallen o your Pedelec. You
must also consult your specialist cycle shop
if the battery has fallen or fallen o. Damaged
batteries must neither be charged nor used for
another application.
• The motor must switch o once the bike reaches
a speed of 25 km/h.
1.2.1 Requirements for the rider
› You do not legally have to wear a helmet. Howev-
er, in the interest of your own safety, you should
never ride without a helmet.
› You do not legally have to have a driving licence.
› You do not legally have to have insurance.
› No age restriction applies for a Pedelec.
› The regulations governing the use of cycle paths
are the same as for normal bikes.
These regulations apply to you wherever you are in
the European Union. It is possible that dierent regu-
› During the charging process, the battery and
charger must be placed on a at, non-ammable
surface. The battery and charger must not be
covered to ensure that the hot air produced during the charging process does not accumulate
and lead to overheating or even a re. There
must be no highly combustible materials in the
immediate vicinity. This also applies when charging the battery on the Pedelec. In this case, you
must place the Pedelec so as to prevent any re
om spreading quickly (exercise caution with
carpeted oors!).
› Lithium reacts very strongly upon direct contact
with water. Caution is therefore required in the
case of damaged batteries which have become
wet, as they may catch re.
› Water should be used to extinguish any ames in
the immediate vicinity, but not the battery itself.
Extinguishers with metal re powder (Class D)
are better suited to this task. If the battery can
be safely moved outdoors, the re can also be
suocated using sand.
Original User Manual | Pedelec Impulse 2.0 Ergo 5
› The battery may heat up during charging. A maxi-
mum temperature of 45°C may be reached. If the
battery becomes any hotter than this, stop the
charging process immediately.
› The Pedelec operates using extra-low voltage
(36volts). Never attempt to operate the Pedelec
using power om a source other than a genuine
Pedelec battery. The designations of approved
batteries are listed in ➠ Chapter 12 “Technical
data”. Only use the original charger provided!
› When removing the battery om your Pedelec,
ensure that it does not fall out. This may cause
irreparable damage to the battery housing.
detailing the tightening torques which must always be adhered to.
1.6 Transportation of the Pedelec
For the transportation of your Pedelec, we recommend
removing the battery om the Pedelec and packaging
it separately. A suitable transport container can be
obtained om your specialist cycle shop.
1.6.1 The Pedelec and your car
1.4 Motor
› Bear in mind that the motor can heat up on long
ascents. Be carel not to touch it with your
hands, feet or legs. You could burn yourself.
› Live parts may be exposed when you open covers
or remove parts. Connection points may also be
live. Maintenance or repairs on the motor when
it is open must only be carried out by a professional bike workshop.
1.5 Adjustments/maintenance/repair
If you transport your Pedelec on a bike rack, ensure that it
is designed for the higher weight of a Pedelec. To reduce
the load on the rack, and for protection against the weather, the battery must be transported inside the car.
1.6.2 The Pedelec on trains
In Germany, you can take your Pedelec with you on trains
which are marked with the bike symbol. On German Intercity (IC) and EuroCity (EC) trains, you must book a place
for your bike in advance. As a rule, you may not take bikes
with you on German Intercity Express (ICE) trains.
1.6.3 The Pedelec on aeroplanes
Your Pedelec is generally subject to the policies of the
respective airline concerning bikes. Batteries are subject
to dangerous goods legislation. Therefore, they must not
be carried on passenger planes – neither in the cargo
hold, nor the cabin. Please contact the relevant airline for
detailed information.
› When carrying out adjustments and maintenance
or when cleaning, avoid crushing cables or damaging them with sharp edges.
› Please have all installation and adjustment work
carried out by your specialist cycle shop. In case
you have to fasten something in place or change
something yourself, you will nd an exhaustive
list at the end of the General User Manual (CD)
6 Original User Manual | Pedelec Impulse 2.0 Ergo
Recommendations
Question: What is the intended eld of application of the
Impulse Ergo Pedelec?
Disclaimer
The contents described hereaer are merely recommendations. Liability claims relating to damage or injury caused
by the use or disuse of the information presented therein
are strictly excluded. It is imperative that illnesses and
other physical disorders are brought to the attention of
a physician for diagnosis and treatment. The following
information in no way serves as a replacement for medical
treatment.
Question: For whom is the Impulse Ergo Pedelec
particularly suitable?
The Impulse Ergo Pedelec is particularly suitable for
people
• with a low endurance capacity.
• who are unable to ride any faster than 25 km/h for
an extended period on a at stretch.
• with medical conditions who have undergone a
medical examination and have been instructed by a
physician as to the exercise parameters (heart rate
ranges) according to which they should train.
Question: What are the possible goals in heart rate-
controlled training?
The intended eld of application is
• heart rate-controlled training within the range of a
preset target heart rate irrespective of the prole
of the route (➠ Chapter 12 “Technical data”).
If you are unsure, it is imperative that you ask
your doctor whether you may use the Impulse Ergo
Pedelec.
Question: For which eld of application is the Impulse
Ergo Pedelec not suitable?
The Impulse Ergo Pedelec is not intended for
• medical rehabilitation (rehab).
Question: When should I terminate training?
Terminate your ride if
• you begin to feel sick, dizzy or in any way unwell.
Possible goals include
• improvement in endurance capacity.
• reduction in body fat.
• increased mobility.
Original User Manual | Pedelec Impulse 2.0 Ergo 7
2 Components of the Pedelec
Saddle
Seatpost
NuVinci Harmony gears
Battery
(on down tube or seat tube)
Seatpost clamp
(with quick-release
lever or screw)
Frame
1. Seat tube
2. Down tube
Display
Control unit
Handlebar
Chest belt
8 Original User Manual | Pedelec Impulse 2.0 Ergo
Motor
Pedal
Fork
Wheel
3 First steps
3.1 Checking the tightening torques
Check that all screws and important components are fastened securely and correctly. You will nd a table with the
prescribed tightening torques in ➠ Chapter 12 “Technical
data” of the General User Manual (CD).
3.2 Fitting the pedals
It may be that the pedals for your Pedelec have yet to be
tted on delivery:
The right pedal (marked with an “R”) is screwed clockwise
into the right crank arm. The le pedal (marked with an
“L”) is screwed anticlockwise into the le crank arm. Both
pedals are screwed in tightly in the direction of the ont
wheel using a size15 open-ended spanner or a suitable
Allen key. The tightening torque is 40Nm.
If the pedals are not screwed in straight, the thread in
the crank arm may be severely damaged.
3.3 Adjusting the saddle height
3.3.1 Clamping bolt
If a torque is specied (in Nm) on the seatpost clamp,
tighten the clamping bolt to this torque. If no tightening
torque is specied, tighten an M6 bolt (dia. 6mm) and an
M5 bolt (dia. 5mm) to 5.5Nm.
3.3.2 Quick-release device
For opening, the quick-release lever must be folded
back through 180° – you will see the lettering “OPEN”.
For closing, fold the quick-release lever back in through
180°– you will see the lettering “CLOSE”.
OPEN
Opening the quick-release lever
CLOSE
Closing the quick-release lever
› As a rule of thumb, you can be condent that the
saddle clamp is suciently secure if the quickrelease lever can only be closed using the heel
of the hand and a certain level of force. You will
feel increasing resistance om the lever, beginning when it is at approx. 90°. If the seatpost is
not clamped rmly or securely enough, tighten
the clamping nut or turn the screw clockwise by
another half a turn respectively while the quickrelease lever is open. Close the quick-release
lever and check that the saddle is securely fastened once more.
› Check that all quick-release levers are fastened
correctly and securely before every journey and
every time you return to your bike having le it
unattended.
› With regard to the saddle height, there is a sim-
ple test procedure: Whilst sitting on the saddle,
the heel of your lly-stretched leg should reach
the lowest pedal position. By contrast, the balls
of your feet should reach the centre of the pedal
in the lowest pedal position with your leg bent
slightly.
Original User Manual | Pedelec Impulse 2.0 Ergo 9
4 Quick start
1. Charge the battery completely before riding for the
rst time. Charge temperature: 0°C to 45°C.
SEAT TUBE BATTERY
Charging the battery
2. Remove the cover om the charging socket.
3. Connect the plug of the charger to the battery.
6. b) Seat tube battery: If you removed the battery for
charging, reinsert the battery into the holder on the
Pedelec om the le-hand side. Tilt the battery outwards at an angle of roughly 45° as you do so. Swivel
the battery into the upright position until the locking
mechanism engages. Now turn the key clockwise and
remove it. The battery is now locked in place.
DOWN TUBE BATTERY SEAT TUBE BATTERY
Installing the battery
7. Now turn the key clockwise and remove it. The battery
is now locked in place.
DOWN TUBE BATTERY SEAT TUBE BATTERY
Charging the battery
4. Plug the charger in at the wall socket.
› You must charge the battery completely before
using it for the rst time. Depending on the
manufacturer of the cells, the batteries will have
a charge state of between 30 and 50%.
› You can also remove the battery om your
Pedelec and charge it elsewhere. For more
information, refer to ➠ Chapter 5 “Battery”.
5. Once all of the battery LEDs have gone out, the battery
is lly charged. Pull the plug of the charger out of the
charging socket and unplug the charger at the wall
socket.
DOWN TUBE BATTERY SEAT TUBE BATTERY
Locking the battery
8. Make sure that the battery is securely positioned and
that the key is no longer in the lock.
9. Press the button on the control unit to switch on the
drive system.
10. a) Pedelec without backpedal nction: Aer the welcome screen, the display shows the power-assist mode
that was last set. Press the / buttons to select
the level of assistance: ECO (low), SPORT (medium),
POWER (high), ERGO (heart-rate-controlled) or no assistance. Pressing once changes the level of assistance
by one level. This works both ways, depending on
which of the buttons you press.
6. a) Down tube battery: If you removed the battery for
charging, replace it in the holder om the ont/above.
At the same time, the key must be in the lock and must
be turned anticlockwise. Press the battery down into
the holder until the locking mechanism engages.
10 Original User Manual | Pedelec Impulse 2.0 Ergo
10. b) Pedelec with backpedal nction: Aer the welcome
screen, the display shows “Please move the pedals”.
This instruction will disappear as soon as you start
riding. Press the / buttons to select the level of
assistance: ECO (low), SPORT (medium), POWER (high),
ERGO (heart-rate-controlled) or no assistance. Pressing
once changes the level of assistance by one level. This
works both ways, depending on which of the buttons
you press.
If you cannot feel any assistance, simply backpedal
briey and then pedal forwards again to trigger the
system check. If there is still no assistance being
delivered, the instruction “Please move the pedals”
will continue to be displayed. In this case you should
consult your specialist bike shop.
4.1 Riding in the ERGO power-assist
mode
1. Follow steps 1 to 9 in ➠ Chapter 4 “Quick start”.
2. Put on the chest belt supplied. Ensure that it does not
slip and that the electrodes are always in contact with
the skin.
Chest belt
11. You can now ride o just as you would if you were
riding a normal bike. The motor starts providing assistance as soon as the rear wheel starts turning.
From the rst moment, you have ll assistance. This
is unfamiliar but comfortable. Practice starting up in a
safe location before venturing into the road trac.
Moisten the reverse of the chest belt with electrode
gel or water before putting it on.
3. Navigate to the ERGO power-assist mode using the
/ buttons. The notication “Determine heart rate
…” appears on the display.
As soon as the heart rate is displayed, you can adjust
the settings rther.
Original User Manual | Pedelec Impulse 2.0 Ergo 11
If the display does not detect the chest belt, the
prompt “Please put on chest belt” appears.
Setting the target heart rate:
1. Select your optimal target heart rate using the
/ buttons.
2. Press the button.
In this case, please refer to ➠ Chapter 10 “Trouble-
shooting” to nd out how to recti this problem.
4. Now press the button for a minimum of four seconds. You are taken to the menu sub-items.
5. Navigate to the menu sub-item “ERGO settings” using
the / buttons. Press the button.
Now you can set both a. the target heart rate and b.the
warning heart rate. Navigate to the desired item using
the / buttons and press the button.
Observe the following points to determine your optimal target heart rate:
› If necessary, you should undergo a sports-medi-
cal exercise test on a bicycle ergometer in order
to determine your performance level and physical condition (ask your health insurance provider
whether they will bear the cost of such a test).
› If no data om sports-medical tests is available,
then you should use the following table as a
guide:
AGE TARGET
HEART
RATE
20 55
25 60
30 65
35 70
40 75
45
50
AGE TARGET
HEART
RATE
12 Original User Manual | Pedelec Impulse 2.0 Ergo
Heart rates dier om person to person.
Variations occur as a result of illness (such as
nctional disorders of the thyroid gland), for
example, or the intake of bradycardia- or
tachycardia-inducing medication (such as
digitalis, calcium antagonists or beta blockers).
Setting the warning heart rate:
1. Select your optimal warning heart rate using
the / buttons.
2. Press the button.
With a target heart rate in the range of the basic
endurance, a warning heart rate of 10 beats (target
heart rate + 10) is recommended. This means: If the
target heart rate is exceeded by 10 beats, an acoustic
warning signal sounds immediately, which repeats
every six seconds. If the target heart rate is exceeded
by 15 beats, two acoustic warning signals sound,
which repeat every ve seconds. If the target heart
rate is exceeded by a minimum of 20 beats, three
acoustic warning signals sound, which repeat every
four seconds.
6. Once you have set the target and warning heart rates,
you can navigate to the item “Back” using the /
buttons.
7. Pressing the button will take you back to the menu
sub-items.
8. Now you can adjust the settings rther under the
other menu sub-items ➠ Chapter 7.3 “Programming and
settings” or navigate to the item “Back” using the
/ buttons. Pressing the button takes you back
to the main menu.
9. Now switch your NuVinci Harmony gears to automatic
mode. As soon as you move the twist-grip shier, the
gears switch on. Press the motor symbol on the mode
button.
Automatic selection of the pedalling cadence
In order to eectively maintain a steady heart rate
whilst riding, we recommend the automatic mode.
Because as soon as you start to ride in manual mode,
you have to shi gear manually to ensure that you do
not exceed your target heart rate.
10. Set the desired pedalling cadence using the twist-grip
shier. The rther forward you move the twist-grip
shier, the faster the pedalling cadence becomes. The
number of boxes lit up in blue increases. The rther
back you move the twist-grip shier, the slower the
pedalling cadence becomes. The number of boxes lit
up in blue decreases. Once you have found your ideal
pedalling cadence, you can ride without even having
to change gear once. The automatic mode adapts the
gear ratio to the pedalling cadence you have set.
› When the bike is stationary, you cannot switch
om minimum to maximum pedalling cadence,
or vice versa. You can only do this whilst riding.
› If you cannot feel any assistance, simply back-
pedal briey and then pedal forwards again to
trigger the system check. If there is still no as-
Original User Manual | Pedelec Impulse 2.0 Ergo 13
sistance being delivered, the instruction “Please
move the pedals” will continue to be displayed.
Consult your specialist cycle shop
Observe the following points to avoid major shortterm variations in your heart rate:
› Pedal evenly with a constant level of eort.
11. You can now ride o just as you would if you were
riding a normal bike. The motor starts providing assistance as soon as you begin to pedal.
From the rst moment, you have ll assistance. This
is unfamiliar but comfortable. Practice starting up in a
safe location before venturing into the road trac.
› As you begin your ride, it is highly probable that
your actual heart rate is below your target heart
rate. You receive very little assistance om the
drive or none at all. You move your Pedelec either totally or almost exclusively by means of
your own eort. As a result, your heart rate rises
and you keep moving closer to your target heart
rate. If you have reached your target heart rate
or even exceeded it, the motor provides assistance according to the riding situation. You can
call up the output delivered by your motor in the
information area.
➠ Chapter 7.2 “Display”
› If you come to a hill, do not try to maintain the
same speed. But do try to maintain the same
level of physical eort. Of course, your speed
decreases as the incline becomes steeper
› Do not sprint when riding.
5 Battery
Your battery is a lithium-ion battery, the ideal type for
this application. One of the main benets is its low weight
combined with a high capacity.
5.1 Charging the battery
You can charge the battery whilst it is on the Pedelec
➠ Chapter 4 “Quick start”.
Alternatively, you can take the battery out of its holder
and charge it in a separate location. This is recommended
if it is cold outside, in order to charge the battery in a
warmer room. The battery can be charged at temperatures
between 0°C and 45°C.
› Riding steadily for extended periods allows the
ERGO system to learn how you handle the bike
and adapt better to your own personal handling
style and the behaviour of your heart rate. It may
take some time to do so and the system must
“learn” these behaviours all over again if the
ERGO settings are readjusted.
14 Original User Manual | Pedelec Impulse 2.0 Ergo
SEAT TUBE BATTERY
Battery in the charger
5.1.1 Removing the battery
1. Grip the battery by the handle, insert the key into
the lock and turn it anticlockwise. The battery is now
unlocked.
1. b) Seat tube battery: Take the charger provided and
the docking station out of their packaging and plug
the mains plug into a socket (230–240V). Connect the
charger to the docking station. The LED in the charger
now lights up briey in red and then permanently in
green.
› To charge the battery safely, the charger must be
placed on a suitable surface, which should be dry
and non-ammable.
DOWN TUBE BATTERY
SEAT TUBE BATTERY
Unlocking the battery
2. a) Down tube battery: Grip the battery with both hands
and li it forwards/upwards out of its holder. Hold the
battery tight to avoid dropping it. Place the battery
down on a suitable surface, which should be dry, at
and non-ammable.
2. b) Seat tube battery: Grip the battery by the handle
and remove it om the Pedelec by tilting it sideways.
Hold the battery tight to prevent it om falling out.
DOWN TUBE BATTERY
SEAT TUBE BATTERY
Removing the battery
› Seat tube battery: The charger must stand on its
four feet. This is essential to ensure that the hot
air om the ventilation slots can dissipate.
2. a) Down tube battery: Connect the plug of the charger
to the battery.
2. b) Seat tube battery: Put the battery in the holder of
the docking station. The LED in the charger lights up in
green.
SEAT TUBE BATTERY
Charging the battery
3. You should now remove the key and keep it in a safe
place to prevent it om breaking o or being lost.
5.1.2 Charging the battery
Before charging the battery, read the information on
the charger carelly.
1. a) Down tube battery: Take the charger provided
out of its packaging and plug it in at the wall socket
(230–240V).
3. a) Down tube battery: Charging begins. If your charger
has an LED, this lights up red. The battery is charged in
ve stages. When charging of one stage is in progress,
the corresponding LED ashes. If this stage has been
lly charged, the LED will light up permanently. Now
the next LED will begin to ash. Aer all ve LEDs have
gone out, the battery is lly charged.
3. b) Seat tube battery: Charging begins. The LED of the
charger lights up in green. The battery LEDs light up
one by one to indicate the progress of charging. The
battery is charged in ve stages. When charging of one
stage is in progress, the corresponding LED ashes.
If this stage has been lly charged, the LED will light
up permanently. Now the next LED will begin to ash.
Aer all ve LEDs have gone out, the battery is lly
charged.
Original User Manual | Pedelec Impulse 2.0 Ergo 15
If your charger has an LED, it may be that this ashes
red permanently. This indicates a charging fault. Take
the battery out of the charger, then put it back in. The
charger tests the battery and performs readjustments,
if required. If the LED on the charger still ashes, take
the charger and battery to your specialist cycle shop
who will test the device and replace it, if required.
4. To save power, pull the charger plug out of the socket
once the charging operation is complete.
› There is no memory eect, so you can top up
your battery aer every trip. Then you are always
ready for the o.
› Ideally you should charge the battery at a tem-
perature of between +10°C and +30°C. It takes
longer to charge the battery at low temperatures,
while the battery will not charge up at temperatures higher than +45°C. Ideally, you should
charge and store the battery inside your house or
in a warm garage when the outside temperature
is low. In this case, you should only t the battery onto your bike just before using it.
› Damaged batteries must not be charged, and
rther use is not permitted.
› The battery may heat up during charging. A maxi-
mum temperature of 45°C may be reached. If the
battery becomes any hotter than this, stop the
charging process immediately.
5.1.3 Installing the battery
1. a) Down tube battery: Insert the battery into the battery holder of the Pedelec om the ont/above. At the
same time, the key must be in the lock and must be
turned anticlockwise.
1. b) Seat tube battery: Insert the battery into the holder
of the Pedelec om the le by tilting it outwards at
roughly 45°.
DOWN TUBE BATTERY SEAT TUBE BATTERY
Installing the battery
16 Original User Manual | Pedelec Impulse 2.0 Ergo
2. Press the battery down into the holder until the locking mechanism engages. Now turn the key clockwise
and remove it. The battery is now locked in place.
SEAT TUBE BATTERY DISPLAY BATTERY CHARGE STATE
.
•••••
5 LEDs light up 100-%
DOWN TUBE BATTERY
SEAT TUBE BATTERY
Locking the battery
3. Make sure the battery is rmly in place.
5.2 Battery information system
There is a display panel on the outer face of the battery
which includes ve LEDs and a battery key | push button.
The LEDs light up as soon as you press the battery key
| push button. The charge state and capacity of the battery
is indicated by the number of LEDs that light up and the
way in which they light up.
••••
•••
••
•
¡
4 LEDs light up -%
3 LEDs light up -%
2 LEDs light up -%
1 LED lights up -%
1 LED ashes -%
5 LEDs ash quickly % or overloaded *
1st LED ashes
Charging fault **
quickly
* All 5 LEDs ash quickly: The battery is a) empty and is
being switched o, or is b) overloaded.
a) If the battery is overloaded, it will switch back on aer
a short idle period and can then be used normally.
b) If the battery is empty, it will work again briey fol-
lowing a short period of rejuvenation and will then
switch back o. It must now be charged.
** The 1st LED ashes quickly: a charging fault.
If this occurs, put the battery in the docking station for a
short period of time or insert the plug of the charger into
the battery. The charger performs a readjustment. If the
LED still ashes, take the battery to your specialist cycle
shop.
DOWN TUBE BATTERY SEAT TUBE BATTERY
Battery key Push button
5.2.1 Checking the charge state
a) Down tube battery: Press the battery key briey. The
LEDs light up and display the current battery charge state.
DISPLAY BATTERY CHARGE STATE
•••••
••••
•••
••
•
¡
b) Seat tube battery: Press the push button briey. The
LEDs light up and display the current battery charge state.
5 LEDs light up 100-%
4 LEDs light up -%
3 LEDs light up -%
2 LEDs light up -%
1 LED lights up -%
1 LED ashes -%
5.2.2 Checking the capacity
a) Down tube battery: If you hold down the battery button for roughly ve seconds, the LEDs show the current
battery capacity. If the LED in the largest panel lights up,
then the battery has a capacity of over 60%. If the capacity is below 60%, this is indicated via the smallest LED.
Only one of the two LEDs can light up at any one time.
b) Seat tube battery: If you press the push button for ve
seconds, the LEDs show the current capacity of the battery.
SEAT TUBE BATTERY DISPLAY CAPACITY
•••••
••••
•••
••
•
¡
5 LEDs light up -%
4 LEDs light up -%
3 LEDs light up -%
2 LEDs light up -%
1 LED lights up -%
1 LED ashes %
Original User Manual | Pedelec Impulse 2.0 Ergo 17
The range of the battery is less in winter due to the
lower temperatures. Only move the battery (om the
warm room where you store it) and t it on your Pedelec just before you set o. This will help to prevent
the eect of the low temperature on the range of the
battery. ➠ Chapter 1.1 “General.
5.3 Battery management
The battery management monitors the temperature of
your battery and warns you of incorrect use.
› If an external short-circuit has been caused at
the contacts or the charging socket, please consult your specialist cycle shop.
› Never leave the battery unattended during charg-
ing. Disconnect the charger aer use.
5.3.1 Sleep mode
The battery management switches the battery to sleep
mode to prevent a so-called deep discharge. At the latest,
the battery management activates the sleep mode aer
ten days without use. The system exits sleep mode when
you connect the battery to the charger or press the battery
key | push button on the battery.
5.4 Warranty and service life
Batteries are wear parts. Wear parts come with a two-year
warranty.
If a fault occurs during this period, your specialist cycle
shop will replace the battery. Normal ageing and battery
wear do not constitute a fault.
The service life of the battery depends on dierent factors.
The most important wear-relevant factors are:
• The number of charges
Aer 1,100 charging cycles, your battery will still
have 60% of its initial capacity, providing it has
been well looked aer. This means 6.6 Ah in an
11 Ah battery and 7.2 Ah in a 15.5 Ah battery. A
charging cycle is dened as the sum of the individual charges until the battery has been charged
to ll capacity once.
For example: You charge the battery with 5 Ah on
the rst day, 2 Ah on the second day and 4 Ah on
the third day; the sum is 11 Ah. The battery has
thereby completed one charge cycle.
According to the technical denition, the battery is
exhausted when less than 60% of the initial capacity is available. If you can still ride the distances
you require with the remaining battery capacity,
you can of course continue using it. If the capacity
is no longer sucient, you can take your battery to
a specialist cycle shop, which will dispose of your
battery and sell you a new one.
• The age of the battery
A battery also ages during storage.
An 11 Ah battery with lithium-ion cells loses around
4–5% of its initial capacity each year. A 15 Ah battery with lithium-nickel-cobalt-aluminium-oxygen
cells around 2–3%.
This means that even if you do not use your battery, its capacity reduces. With everyday use, you
can expect the battery to age by approximately
3–5% per year as a result of ageing and charging
processes.
Ensure that the battery does not become too hot.
The rate at which the battery ages increases signicantly at temperatures above 40°C. Direct sunlight
can heat the battery considerably. Be sure not to
leave the battery in a hot car, and always stand
your Pedelec in the shade during breaks in cycle
trips. If you cannot prevent exposure to heat, do
not charge the battery until it has cooled down.
A lly charged battery ages at an even greater rate
than a partially charged one at high temperatures.
18 Original User Manual | Pedelec Impulse 2.0 Ergo
• If you always ride with maximum motor output,
your motor will always require a higher current.
Higher currents cause the battery to age more
quickly.
• You can also extend the service life of the bat-
tery by using the assistance selectively. Use a
low assist level when riding. With lower discharge currents, you conserve your battery.
Make sure that the battery is lly charged before you
ride your bike for the rst time or if you have not used
it for a while.
5.5 Storage
If you do not need your battery for a while, store it at a
temperature of +10°C at 50–70% of its ll charge capacity. If you do not use the battery for six months, you must
recharge it.
5.6 Shipping
6 Charger
If used incorrectly, the charger may be damaged or
cause injury.
• Only use the charger in dry rooms.
• Only place the charger in a secure, stable
position on a suitable surface.
• Do not cover the charger or place any objects on
it, as otherwise it could overheat and catch re.
› Do not use any other charger. Only charge your
battery using the charger provided, or a charger
approved by us.
Never send your battery by post or courier! A battery
is a hazardous article which can overheat and catch
re in certain conditions.
The preparation and shipping of a battery may only be
carried out by trained personnel.
If you would like to return your battery for repair or replacement, please always arrange this via your specialist
cycle shop. Specialist cycle shops can have the battery
picked up ee of charge and in compliance with dangerous goods legislation.
5.7 Disposal
Batteries must not be disposed of with domestic waste.
Consumers are legally bound to dispose of used or damaged batteries at the locations designated for the purpose
(battery collection point or specialist cycle shop).
› Read the type plates on the charger before using
it for the rst time.
You can charge your Pedelec Impulse 2.0 Ergo directly via
a charging socket in the battery. The battery can remain
on the Pedelec whilst the charging operation is in progress.
SEAT TUBE BATTERY
Charging the battery
Alternatively, you can take the battery out of its holder
and charge it elsewhere. This is recommended if it is cold
outside, in order to charge the battery in a warmer room.
The battery can be charged at temperatures between 0°C
and 45°C.
Original User Manual | Pedelec Impulse 2.0 Ergo 19
SEAT TUBE BATTERY
Battery in the docking station
7.1.1 Switching on/o
Press the button on the control unit to switch the Impulse system on. Aer a few seconds, the welcome screen
appears, followed by the start menu. From there you can
carry out rther settings ➠ Chapter 1.1 “General”.
Aer switching on, the system is always in the same
display mode as when you last switched it o.
If a charging fault occurs, the LED (where present)
in the charger ashes red. In this case, the charging
current is too high. Disconnect the battery om the
charger and then connect it again. If the error message still appears, the battery and charger must be
checked by a specialist cycle shop.
7 Control unit and display
The Pedelec Impulse 2.0 Ergo can be controlled via two
elements: the control unit on the handlebar grip and the
display in the middle of the handlebar.
7.1 Control unit
1
2
To switch your Pedelec o, press the button on the control unit in the start menu.
7.1.2 Pushing assistance
The pushing assistance moves the Pedelec slowly (at a
maximum speed of 6 km/h) without you having to turn the
pedals, e.g. if you are manoeuvring in a tight space or are
pushing your Pedelec out of a basement garage.
To activate the pushing assistance, press the button for
three seconds.
The pushing assistance is not suitable for use as
starting assistance.
7.1.3 / buttons
3
4
Press the button to switch the system on and o. Buttons 2 to 4 have dierent nctions depending on the
menu item you have selected.
20 Original User Manual | Pedelec Impulse 2.0 Ergo
1 button
2 button
3 button
4 button
• You can speci the power-assist level via the
/ buttons.
• Each time you press one of these two buttons, the
power assist changes by one level. If you press the
button once, the level of assistance increases by
one level. If you press the button once, the assistance becomes weaker by one level.
7.2 Display
• Journey time during the current trip and the top
speed reached on this trip.
1
1 Speed
2 Power-assist mode
3 Battery charge state
4 Remaining range
5 Information area
2 3
4
5
The display in the middle of the handlebar is divided into
ve dierent display elds.
• At the top on the le is your current 1speed.
• To the right of the current speed is a display show-
ing the selected 2 power-assist mode ➠ Chapter
7.2.1.
• At the top on the right is the 3 battery symbol
which tells you the current battery charge state of
your Pedelec ➠ Chapter 7.2.2.
• Below this the remaining 4 range is displayed
➠ Chapter 7.2.3.
• Average speed during the current trip and the
total distance covered.
7.2.1 Assistance indicator
The display shows you how much assistance the motor is
currently providing.
DISPLAY ASSISTANCE
ERGO
POWER
SPORT
ECO
ERGO
POWER
SPORT
ECO
ERGO
POWER
SPORT
ECO
ERGO
POWER
SPORT
ECO
ERGO
POWER
SPORT
ECO
The level of assistance depends
on your heart rate.
This means the assistance is
working hard.
This means the assistance is
working at medium output.
This means the assistance is
working at low output.
No assistance. Battery indicator
is still lit.
• Along the bottom section of the display is a long
5
information area that can be used to call up
the following information:
You can switch between the various displays in the
information area by pressing the button in the
main menu.
• How much of its potential output the motor is
currently delivering.
• The costs incurred in the course of the current
trip and during the entire service life.
• The savings achieved in both euros and CO in
comparison with the same journey by car.
• Total number of kilometres covered.
• Kilometres covered during the day and overall.
Use the / buttons to switch between the individual
power-assist modes.
Original User Manual | Pedelec Impulse 2.0 Ergo 21
7.2.2 Battery charge state indicator
The battery charge state indicator is located at the top
right of the display. Using a battery symbol divided into
seven segments, it shows the charge remaining in the
battery. The lower the charge state of the battery, the
fewer segments are displayed.
DISPLAY BATTERY CHARGE STATE
-.%
.-.%
.-.%
.-.%
pends on the current battery charge state and the assist mode which has been set (ERGO, POWER, SPORT
or ECO).
7.2.4 Units
Press and hold the button for three seconds to switch
between kmh (speed)/ km (remaining range indicator) and
mph/mi.
7.3 Programming and settings
Aer switching on the Impulse system, you can switch
om the main menu to the menu sub-items, by pressing
the button for three seconds.
.-.%
.-.%
If the battery charge state falls below a minimum level,
the motor assistance switches o. Then the entire display
fades and goes o, too.
If you do not use your Pedelec for ten minutes, the
system switches o automatically. If you then want
to ride using the assistance, you will have to switch it
back on via the control unit.
7.2.3 Remaining range indicator
Below and to the right of the battery charge state indicator, the distance in km over which you can still travel with
power assist is displayed. This is the remaining range
indicator.
If the riding conditions change, for example, when
you come to a hill aer a long, at stretch, the value
displayed can also change at short notice. Please
consider this factor when planning your trips. You are
probably familiar with this eect om the remaining
range indicator of your car. The remaining range de-
This takes you to the menu sub-items:
• Drive data ➠ Chapter 1.2.1
• Delete trip data ➠ Chapter 7.3.2
• Delete overall data ➠ Chapter 7.3.3
• Device settings ➠ Chapter 7.3.4
• Personalize ➠ Chapter 7.3.5
• Target cost ➠ Chapter 7.3.6
• ERGO settings ➠ Chapter 7.3.7
• Back
You can select the menu sub-items using the / buttons
on the control unit. Conrm your selection by pressing the
button. The respective contents are then displayed for
you. To return to the main menu display om the menu
sub-items, you must select “Back” and conrm by pressing the button. You can also return to the main menu by
pressing and holding the button for three seconds.
7.3.1 Drive data
The following data are displayed in the menu sub-item
“Drive data”:
• Trip (in km)
• Trip time (in 00:00:00)
• Trip max (in km/h)
• Trip Ø (in km/h) = Trip average
• Trip cost (in €)
• Tour (in km)
• Tour Ø (in km/h) = Tour average
• Tour cost (in €)
• Overall (in km)
• Overall savings (in €)
• Tot. sav. CO2 (in kg)
• Back
22 Original User Manual | Pedelec Impulse 2.0 Ergo
Select the desired item using the / buttons. The selected item is highlighted in bold. Conrm your selection
by tapping the button. This takes you back to the menu
sub-items.
7.3.2 Delete trip data
Under the menu sub-item “Delete trip data”, you can
delete the kilometres indicated for the current day trip.
The following question appears on the display: “Conrm
delete?”, and below it “Yes” or “No”. Select one of these
using the / button. Your selection is highlighted in
bold. Conrm your selection by tapping the button. This
takes you back to the menu sub-items.
7.3.3 Delete overall data
Under the menu sub-item “Delete overall data”, you can
delete the total kilometres covered. The following question appears on the display: “Conrm delete?”, and below
it “Yes” or “No”. Select one of these using the / button. Your selection is highlighted in bold. Conrm your
selection by tapping the button. This takes you back to
the menu sub-items.
7.3.4 Device settings
Under the menu sub-item “Device settings”, you can select
the following items by pressing the / button:
• Display ➠ Chapter 7.3.4.1
• Drive ➠ Chapter 7.3.4.2
• Miscellaneous ➠ Chapter 7.3.4.3
• Back
Conrm your selection by tapping the button.
7.3.4.1 Display
Choose om the following using the / button:
• Contrast
• Brightness
• Language
• Unit
• Back
Conrm your selection by tapping the button.
Contrast: You can select the following values using the
/ button:
Very low contrast -35%
-30%
-25%
-20%
-15%
-10%
-5%
Average Standard
5%
10%
15%
Very high contrast 20%
The change in contrast is implemented immediately. Tapping the button conrms your selection and then takes
you back to the menu sub-item display.
Brightness: You can select the following values using the
/ button:
Very bright -50%
45%
40%
35%
30%
Average Standard
5%
10%
15%
Very dull 20%
The change in brightness is implemented immediately.
Pressing the button conrms your selection and then
takes you back to the menu sub-item display.
Language: You can choose to have the information shown
on the display in the following languages:
• Deutsch
• English
• Francais
• Nederlands
• Espanol
• Italiano
• Suomi
• Dansk
Original User Manual | Pedelec Impulse 2.0 Ergo 23
Select a language using the / buttons. Tapping the
button conrms your selection and takes you back to
the menu sub-item display.
Climb Assist: Choose om the following values using the
/ button:
1 2 3 4 5 6 7
Unit: Under the item “Unit”, you can choose whether the
distance travelled and speed are displayed in kilometres
(km) or miles (mi). Use the / buttons to choose between kilometres (km) or miles (mph). Tapping the button conrms your selection and then takes you back to the
menu sub-item display.
7.3.4.2 Drive
Choose om the following using the / button:
• Wheel circumference
• Shi Sensor
• Climb Assist
• Back
Conrm your selection by tapping the button. This
takes you back to the menu sub-item display.
Wheel circumference: You can set the “wheel circumference” to any value between 1540 mm and 2330 mm by
pressing the / buttons on the control unit. Tapping the
button conrms your selection and then takes you back
to the menu sub-item display.
A change to the setting becomes necessary, for example, when you have the tyres on your Pedelec
exchanged for some of a dierent size. In order to
display the correct data, the new wheel circumference
must be entered.
Conrm your selection using the button.
You can inuence the response time of the power sen-
sor with the Climb Assist. The lower the value you set,
the less responsive the system becomes. The higher
the value you set, the more dynamic the system be-
comes, but beware a yo-yo eect.
7.3.4.3 Miscellaneous
Choose om the following using the / button:
• Factory settings
• Soware
• Back
Conrm your selection by tapping the button.
Factory settings: The following question appears: “Restore
factory settings?”. Select “Yes” if you wish to reset the
system to its original settings. Select “No” if you wish to
retain all the settings you have made. Conrm your selection by tapping the button.
Soware: This takes you to the items:
• Version
• Update
• Back
Shi Sensor: Choose om the following values using the
/ button:
OFF
50 ms 100 ms 150 ms 200 ms 250 ms 300 ms
Conrm your selection by tapping the button.
The Shi Sensor recognises gear shiing and imperceptibly interrupts the power assist for actions of a
second. This enables you to move more smoothly and
considerably faster through the gears. The higher the
value you set, the longer the assistance is interrupted
for, and the more time there is for shiing gears.
24 Original User Manual | Pedelec Impulse 2.0 Ergo
Make a selection using the / button, then conrm and
go to that item by tapping the button.
• Version: Here the current soware version of the
motor is displayed.
• Update: Here you can bring the soware up to
date. Your specialist cycle shop will perform a
soware update.
7.3.5 Personalize
Choose om the following using the / button:
• Name
• SET-Favourites
• Back
Conrm your selection by tapping the button.
Name: Under the sub-item “Name”, you can enter a name
or other text with a maximum of 21 characters which will
be displayed when the display is turned on and o. Navigate using the / button and select the desired character. Tap the button briey. Create your text om the
following characters:
• Power cost
• Total saving
• Total km
• Back
7.3.6 Target cost
Via the menu sub-item “Target cost”, you can access the
sub-items:
• Fuel price
• Fuel consumption Ø
• Fuel type
• Power cost
• Back
You can select the sub-items using the / buttons.
Pressing the button takes you to the respective subitem. Select “Back” and conrm with the button to return to the menu sub-item display.
Display capital letters
The use of spaces is not possible, so underscores
must be used in their place.
Display lower case letters
SET-Favourites: Navigate using the / buttons. Deselect
or conrm the selection of the following items by tapping
the button:
• Trip max/Ø = Trip max/ave.
• Tour km/Ø = Trip km/ave.
• Cadence/Assistance
The el price, average consumption and el type
need to be entered to enable calculation of the money
and CO2 saved in comparison with the use of a car.
This is displayed in the main menu of the information
area under “Overall savings” ➠ Chapter 7.2.
Fuel price: Under the sub-item “Fuel price”, you can
speci the price of petrol or diesel in euros and cents.
You can set this to a value in euros between 0 and 9 euros
and a value in cents between 0 and 99 cents by using the
buttons on the control unit to move in 1-euro and 1-cent
steps respectively. Once you have conrmed both values
by pressing the button, this takes you back to the menu
sub-item display.
Fuel consumption Ø: You can enter the average el con-
sumption for driving a car in half-litre steps om 0 to
20litres. Navigate using the / buttons. Pressing the
button conrms your selection and then takes you back
to the menu sub-item display.
Fuel type: Under the sub-item “Fuel type”, you can choose
“Petrol” or “Diesel” by pressing the / buttons. Pressing the button conrms your selection and then takes
you back to the menu sub-item display.
Power cost: Under the sub-item “Power cost”, you can
speci the price of electricity om 0 to 99 cents (ct) using the / buttons on the control unit to move in 1-cent
Original User Manual | Pedelec Impulse 2.0 Ergo 25
steps. Pressing the button conrms your selection and
then takes you back to the menu sub-item display.
7.3.7 ERGO settings
Via the menu sub-item “ERGO settings”, you can access
the sub-items:
• Target heart rate
• Warning heart rate
• Back
AGE TARGET
HEART
RATE
20 55
25 60
30 65
35 70
40 75
45
50
AGE TARGET
HEART
RATE
You can select the sub-items using the / buttons on
the control unit. Pressing the button takes you to the
respective sub-item. By selecting the sub-item “Back” and
pressing the button to conrm, you are taken to the
menu sub-item display once more.
7.3.7.1 Target heart rate
Under the sub-item “Target heart rate”, you can set your
optimal target heart rate. This can be set to a value of
between 40 and 240 by pressing the two / buttons
on the control unit. Pressing the button conrms your
selection and then takes you back to the menu sub-item
display.
Observe the following points to determine your optimal target heart rate:
› If necessary, you should undergo a sports-medi-
cal exercise test on a bicycle ergometer in order
to determine your performance level and physical condition.
› If no data om sports-medical tests is available,
you should use the following table as a guide:
Heart rates dier om person to person.
Variations occur as a result of illness (such as
nctional disorders of the thyroid gland), for
example, or the intake of bradycardia- or
tachycardia-inducing medication (such as
digitalis, calcium antagonists or beta blockers).
7.3.7.2 Warning heart rate
Under the sub-item “Warning heart rate”, you can set your
optimal warning heart rate. You can set this to a value of
between “Target heart rate + 5” and “Target heart rate
+20” by using the two / buttons on the control unit.
Pressing the button conrms your selection and then
takes you back to the menu sub-item display.
With a target heart rate in the range of the basic
endurance, a warning heart rate of 10 beats (target
heart rate + 10) is recommended. This means: If the
target heart rate is exceeded by 10 beats, an acoustic
warning signal sounds immediately, which repeats
every six seconds. If the target heart rate is exceeded
by 15 beats, two acoustic warning signals sound,
which repeat every ve seconds. If the target heart
rate is exceeded by a minimum of 20 beats, three
acoustic warning signals sound, which repeat every
four seconds.
8 NuVinci Harmony gears
As soon as you operate the twist-grip shier or start
riding, the NuVinci Harmony gears switch on.
26 Original User Manual | Pedelec Impulse 2.0 Ergo
Now decide whether you prefer manual or automatic
operation of the NuVinci Harmony gears. Press the mode
button to switch to the desired mode.
Manual mode
Automatic mode
Mode buttons
Automatic selection of the pedalling cadence
8.2 Manual mode
We recommend the automatic mode for riding in the
ERGO power-assist mode. Because as soon as you
start to ride in manual mode, you have to shi gear
manually to ensure that you do not exceed your target
heart rate.
8.1 Automatic mode
Set the desired pedalling cadence using the twist-grip
shier.
The pedalling cadence is the number of crank revolutions within a specic period of time when riding.
You can choose between 12 dierent pedalling cadences.
The rther forward you move the twist-grip shier, the
faster the pedalling cadence becomes. The number of
boxes lit up in blue increases. The rther back you move
the twist-grip shier, the slower the pedalling cadence becomes. The number of boxes lit up in blue decreases. The
blue LEDs indicate the exact setting. Once you have found
your ideal pedalling cadence, you can ride without even
having to change gear once. The automatic mode adapts
the gear ratio to the rider’s preferred pedalling cadence.
Set the desired pedalling cadence using the twist-grip
shier. You can choose between 12 dierent pedalling cadences. The rther forward you move the twist-grip shier, the faster the pedalling cadence becomes. The number
of boxes lit up in orange increases. The rther back you
move the twist-grip shier, the slower the pedalling cadence becomes. The number of boxes lit up in orange decreases. The orange LEDs indicate the exact setting.
Manual selection of the pedalling cadence
You cannot shi through the entire gear ratio range
of the NuVinci Harmony gears when the bike is sta-
tionary. If you shi between gear ratios with a large
dierential when the bike is stationary, the Harmony
system will wait for the pedals or the bike to move.
Original User Manual | Pedelec Impulse 2.0 Ergo 27
9 The motor
9.1 Operation
If you switch on the assistance and start pedalling, the
motor starts as soon as the rear wheel is turning.
The level of thrust delivered by the motor depends on
three factors:
9.2 Range
The distance you can travel using the power assist with
the battery lly charged depends on several factors:
• Selected assist level
If you want to cover a large distance with power
assist, select the smaller gears, i.e. the ones that
are easier to pedal. Also select a low assist level
(ECO).
• Your own pedalling eort.
The motor adapts to the force you apply. If you
pedal harder, e.g. uphill or when setting o, the
power sensor detects this and delivers more power
than if you were only pedalling gently. The assistance increases proportionally if you pedal harder.
The higher the assist level you set, the more pronounced this assistance characteristic becomes.
Impulse
Increasing
pedal power and
assistance
Propulsive power (pedal
force + electrical assistance)
Pedal force
Electrical assistance
Propulsive power
• How you ride
Reducing
assistance
If you are riding in gears that are harder to pedal
and select a high assist level, the motor will produce plenty of power to help you along. However,
just as with driving a car at high speed, this leads
to higher consumption. You will therefore have to
recharge the battery sooner. You can conserve battery power by pedalling with even force throughout
the complete revolution of the pedals.
Assistance
switched o
Speed
Max. assistance Switch-o speed
Ratio of pedal force to electrical assistance
• The level of assistance you have selected.
In the highest assist level (POWER), the motor assists you with the highest output and therefore also
uses the most energy. With the SPORT assist level,
the motor produces slightly less power. If you have
selected ECO, you receive the least amount of assistance but have the battery’s maximum range at
your disposal.
• How fast you ride.
When you set o on your Pedelec, the assistance
increases as you build up speed until it reaches its
maximum, just before the highest assisted speed
is achieved. Then it reduces automatically and
switches o at roughly 25km/h, irrespective of the
gear you are in. Depending on the power-assist
mode you are riding in, the transition between riding with and without power assist may seem more
or less abrupt.
• Ambient temperature
If it is colder, you will travel a shorter distance
with the same battery charge. To maximise the distance you can travel, keep the battery in a heated
room so that it is at room temperature when you t
it on your Pedelec.
When the motor is in use, the battery generates
enough heat to not lose too much of its power at
low ambient temperatures. The battery cells can
operate at temperatures of -15°C to +60°C.
• Technical condition of your Pedelec
Make sure the tyre pressure is correct. If you ride
your bike with too little air in the tyres, this can
signicantly increase the rolling resistance, especially on smooth surfaces, e.g. tarmac. If the
ground is uneven, as on a country path or gravel
track, a somewhat reduced tyre pressure can lead
28 Original User Manual | Pedelec Impulse 2.0 Ergo
to less rolling resistance. At the same time, the risk
of a puncture increases. Please consult your specialist cycle shop about this. The distance you can
travel also decreases if the brakes are rubbing.
• Battery capacity
The current battery capacity ➠ Chapter 5.2.2
“Checking the capacity.
• Topography
You pedal harder when riding uphill. This is detected by the power sensor which then allows the
motor to work harder.
Under ideal conditions, the range may reach 130 km with
the 11 Ah battery, 180 km with the 15 Ah battery and
205 km with the 17 Ah battery. These ranges have been
achieved under the conditions listed below.
IMPULSE BATTERY AH AH AH
Range 130km 180km 205km
Temperature 10-15°C 10-15°C 10-15°C
This sample calculation is based on German energy prices.
The operating costs may therefore be dierent in locations
where other energy prices apply.
9.4 Warranty and service life
The Impulse centre motor is a durable maintenance-ee
drive. It is a wear part with a two-year warranty. As their
power outputs are higher, wear parts such as the drive
and brakes are subject to higher loads than they would be
on a normal bike, causing increased wear.
• This means the cost of consumption and the bat-
tery is a maximum of 0.82cents / km.
Wind speed Windless Windless Windless
Average speed 22 km/h 22 km/h 22 km/h
Assist level ECO ECO ECO
Gross weight 105-110kg 105-110kg 105-110kg
9.3 Riding your Pedelec eciently
You can monitor and inuence the cost of your journeys
with the Pedelec yourself. You can reduce your consumption and therefore costs by following the tips for increasing the range.
The operating costs for power assist with an 11 Ah battery
are calculated as follows:
• A new battery costs roughly 599euros.
• Throughout the total service life of a battery, you
can cover roughly 80 kilometres with one charge
cycle.
• You can charge the battery roughly 1,100 times.
• 1,100 charging cycles x 80km = 88,000km.
• 599euros: 88,000km = 0.68cents / km.
• You use roughly 0.565kWh to lly charge the bat-
tery. Assuming a unit price of 20cents / kWh, it
costs you 11.3cents to lly charge the battery.
• It costs you 0.14 cents to cover the average range
of 80km.
Original User Manual | Pedelec Impulse 2.0 Ergo 29
10 Troubleshooting
TEXT CAUSE REMEDY
Battery heats up to above 45°C
during charging.
Battery will not charge. Ambient temperature is too
Battery is damaged. Accident or fall with your
Range of the battery seems low. Capacity of the battery cells
“Speed sensor signal missing” Spoke magnet has slipped
High ambient temperatures Stop the charging process and allow the battery
to cool down. Then charge the battery in a cooler
environment. If the problem still occurs, contact
your specialist cycle shop; the battery may need
to be replaced.
Damaged battery Damaged batteries must neither be charged nor
used in any way. Contact your specialist cycle
shop; the battery may need to be replaced.
You can charge the battery at temperatures
high or too low
between 0°C and 45°C.
A damaged battery must neither be charged nor
Pedelec, or the battery has
been dropped.
used in any way. Contact your specialist cycle
shop; the battery may need to be replaced.
Protect the battery om heat by standing your
depends on the temperature.
Pedelec in the shade, for example.
Make sure the spoke magnet has not slipped. It
out of position
should be as close as possible to the sensor on the
chain stay (max. 5 mm clearance).
Speed sensor defective Consult your specialist cycle shop.
Cable connection defective Consult your specialist cycle shop.
“Battery communication error” No connection between motor
and battery
Charging of your 17 Ah battery
ends before completion.
The LED in the charger (where
present) is ashing red.
You have run the battery
down to empty
In this case, the charging
current is too high
“Motor temperature is too high” The motor has overheated.
For example, aer riding up
a long, steep incline in a high
gear.
1
2
1 Spoke magnet
2 Sensor on chain stay
Connect the battery to the charger.
Use a dierent battery.
Consult your specialist cycle shop.
Pull the mains plug out of the charger and then
plug it in again. Now the battery should charge
lly. If the problem persists, please contact your
specialist cycle shop.
Disconnect the battery om the charger and then
connect it again. If the error message still ap-
pears, contact your specialist cycle shop to check
the battery and charger.
Allow the motor to cool down before resuming
your journey.
30 Original User Manual | Pedelec Impulse 2.0 Ergo
“Please move the pedals”
permanently shown on display.
“Please put on chest belt”
permanently shown on display
Backpedal brake switch
defective
The chest belt is too loose • Tighten the chest belt.
The battery of the chest belt
is empty
Backpedal briey and then pedal forwards again
to trigger the system check. If there is still no
assistance being delivered, please consult your
specialist cycle shop.
• Change the battery. To do so, unscrew the bat-
tery cover on the reverse of the chest belt using a coin and exchange the battery beneath
the cover for an appropriate replacement battery ensuring that the polarity is not reversed.
There is no layer of moisture
between the skin and the
electrodes.
The chest belt is dirty • Clean the chest belt with lukewarm water and
“Determine heart rate …”
permanently shown on display
The pedalling cadence no longer
adjusts itself correctly
The system switches o Battery has been run empty Wait ve minutes. During this period, the bat-
Electromagnetic disturbance
(high-voltage power lines,
trac lights, MP3 players,
overhead cables, mobile
phones, other training devices)
Extraneous radiation or battery was not connected for an
extended period of time
• Moisten the chest belt with electrode gel or
water before putting it on.
a mild soap solution.
• Stay away om possible sources of
disturbance.
• First switch the Impulse ERGO Pedelec o,
and then on again.
Ride slowly and hold down the mode button on
the NuVinci Harmony gears for between ve and
seven seconds.
tery will have recovered and you can switch the
system back on again. The display nctions once
more. From now on, please only ride in the mode
“no assistance/stand by”. At this point you can
also operate the gears once more. In this way, you
can ride for another hour until the battery nally
switches o. Note: The battery switches o as
soon as you begin to ride using the power-assist
mode once more.
Original User Manual | Pedelec Impulse 2.0 Ergo 31
11 Cleaning
11.3 Display
The housing of the display must only be cleaned with a
damp (not wet) cloth.
› Remove the battery before you clean your
Pedelec.
› Do not use benzine, thinner, acetone or similar
agents in the cleaning procedures under any circumstances. Also avoid using abrasive or harsh
cleaners.
› Only use household cleaners and disinfectants
(isopropyl alcohol) or water. You can obtain suitable cleaning products and additional information om your specialist cycle shop. We recommend you clean your Pedelec with a damp cloth,
a sponge or a brush.
11.1 Battery
Make sure that water does not enter the battery when
cleaning. Although the electrical components are sealed,
it is not advisable to clean your bike with a hose or highpressure cleaner, as it could cause damage. When wiping
down the battery, be carel not to touch and connect the
contacts on the underside. This could cause the battery to
switch o.
11.4 Control unit
The control unit can be cleaned with a damp cloth if
necessary.
11.5 Charger
Always unplug the charger om the wall socket before
cleaning to avoid a short-circuit and physical injury.
Make sure that water does not enter the charger when
cleaning.
11.2 Motor
Dirt should be removed om the motor of your Pedelec
regularly, ideally using a dry brush or a damp (not wet)
cloth. Do not use running water such as a hose pipe or
even a high-pressure cleaner.
The ingress of water can damage the motor, so ensure that
no uids or moisture enter the motor at any time during
cleaning.
Do not clean the motor when it is warm, e.g. immediately
aer a trip. Wait until it has cooled down. Otherwise, the
motor may be damaged.
If you remove the motor, e.g. for cleaning purposes, never
hold or carry it by the cables, as there is a risk that they
will break.
If you remove the motor om the ame of your Pedelec,
check the plug om the motor and battery cable socket for
dirt. If necessary, clean carelly with a dry cloth before
reconnecting.
32 Original User Manual | Pedelec Impulse 2.0 Ergo
12 Technical data
MOTOR
Brushless electric motor with gear unit and eewheel
Output 250 W rated output
Gross weight
of electric drive,
battery, control unit
Control via torque sensor and rotational speed sensor in motor and speed sensor (on rear wheel)
IMPULSE LIION DOWN TUBE BATTERY
Voltage 36 V 36 V
Capacity 11 Ah 17 Ah
Energy
content
Weight 2.9 kg 2.9 kg
Charging time 3 hours 4.5 hours
Cell 2.25 Ah 3.4 Ah
IMPULSE LIION SEAT TUBE BATTERY
Voltage 36 V 36 V 36 V 36 V
Capacity 11 Ah 12 Ah 15 Ah 17 Ah
396 Wh 612 Wh
Freewheel motor Backpedal brake motor
11 Ah 15 Ah 12 Ah 17 Ah
6.65 kg 6.75 kg 6.75 kg 6.75 / 6.85 kg
Energy
content
Weight 2.85 kg 2.5 kg 2.95 kg 2.95 kg
Charging time 4 hours 4 hours 5 hours 6 hours
Cell 2.25 Ah 2.9 Ah 3.1 Ah 3.4 Ah
It is generally permitted for children to be carried
in bike trailers on Pedelecs. Observe the maximum
permitted gross weight of the bike ➠ Chapter 30
“Technical data” of the General User Manual (CD).
396 Wh 418 Wh 540 Wh 612 Wh
Original User Manual | Pedelec Impulse 2.0 Ergo 33
We hope you thoroughly enjoy using your new Pedelec
with Impulse 2.0 drive.
Copyright © Derby Cycle Werke GmbH / Raleigh Univega GmbH
Reproduction, in whole or in part, is not permitted without the consent
of Derby Cycle Werke GmbH / Raleigh Univega GmbH.
Subject to misprints, errors and technical modications.
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