E-Bike components
User manual
Rear motor system:
Ø R250HP-SPM148-E25 rear
motor
Ø BB sensor
Ø OLED display (mph)
Ø Battery: Lithium ion type
ENGLISH
1
Important information
l Contact the dealer where the bike was
purchased for the information of
installation and adjustment of the products
that are not found in the user manual.
l Do not dis-assemble or alter the products.
l Use the products according to the local
laws and regulations.
For safety reason, make sure to read this
user manual thoroughly before using the
system.
Important safety information
In case if any parts need to be replaced,
contact a dealer or the place where the bike
was purchased.
Make sure to observe the following notice in
order to avoid burns or injury from fluid
leakage, overheating, fire or explosions.
Making sure for Safety
DANGER
l Use the SR SUNTOUR specified charger and
observe the specified charging conditions
when charging the specified battery. It may
cause overheating, bursting or ignition of
the battery if it’s not followed.
WARNING
How to ride more safely
l While riding,, do not focus too much
attention on the display, as this can lead to
accidents.
l Make sure that the wheels are securely
attached to the bike before start riding. If
the wheels are not securely attached, the
bike may fall over, causing severe damage
and possible serious injury.
l When riding a power-assisted bike, make
sure that you are completely familiar with
the starting characteristics of the bike
before riding it on roads with several
vehicles lanes and pedestrian footpaths. If
the bike starts off suddenly, accidents may
result.
l Check to see if the lights are properly
working when riding at night.
Handling the battery
l Do not deform, modify, disassemble or
apply solder directly to the battery. It may
cause leakage, overheating, bursting or
ignition of battery if it’s not followed.
l Do not leave the battery near sources of
heat such as heaters or fire. Do not heat
the battery or throw it into a fire. It may
cause bursting of ignition or the battery if
it’s not followed.
l Do not put the battery in the condition such
as strong shock or throw it. If this is not
observed, overheating, bursting or fire may
occur.
l Do not place the battery into fresh water or
sea/salt water and do not allow the battery
terminals/connectors to get wet. It may
cause overheating, bursting or ignition of
the battery if it’s not followed.
Using the product safely
l Be sure to remove the battery before
performing wiring or installation work on
the bike. Otherwise there is a danger of
electric shock.
l When charging the battery while it is
mounted on the bike, do not move the bike.
The power plug of the battery charger may
come loose and not be fully inserted into
the electric outlet, resulting to the risk of
fire.
l When installing this product, make sure to
follow the instructions given in the user
manual. It is also recommended that the
genuine SR SUNTOUR parts are only used at
such times. If nuts and bolts are left
loosened or the products are damaged, the
bike may fall over suddenly and cause
serious injury.
l Do not disassemble the product.
Disassembling may cause injury to persons.
l After reading the user manual carefully,
keep it in a safe place for later reference.
2
How to handle the battery
l In case if any liquid leaking from the battery gets
into your eyes, wash the affected area immediately
and clean thoroughly with clean water without
rubbing your eyes, and consult the medical advice
immediately. If this is not done, the battery liquid
may damage your eyes.
l Do not recharge the battery in places with high
humidity or out-doors. It may result in electric
shock if it’s not followed.
l Do not insert or remove the plug while it is wet. If it
is not observed, electric shocks may occur. If there
is water leaking out of the plug, dry it thoroughly
before inserting it.
l If the battery doesn’t become fully charged after 6
hours of charging, un-plug the battery from the outlet immediately to stop charging, then contact the
place of purchase. It may cause the overheating,
bursting or ignition of the battery if it’s not followed.
l Do not use the battery if there is any scratches or
other external damage found visibly. It may cause
overheating, bursting or problems with operation.
l The operating temperature ranges for the battery
are shown as below. Do not use the battery in
temperatures outside these ranges. If the battery is
used or stored in temperatures outside these
ranges, it may cause fire, injury or problems with
operation.
1) During discharging:
-10℃ - 50 ℃ / 15℉ - 120 ℉
2) During charging:
0℃ - 40 ℃ / 30℉ - 105 ℉
CAUTION
To be su re t he s afe r id in g
l Make sure to follow the instructions in the user
manual for the bike, in order to ride safely.
Using the products safely
l Make sure to check the battery charger and
adaptor time to time, especially the cable, plug, and
case for any damage. If the charger or adaptor is
broken, do not use it until it has been repaired.
l This product is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given
supervision or instruction concerning use of the
product by a person responsible for the safety.
l Do not allow children to play near the product.
How to handle the battery
l 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.
l In case of any leaked fluid gets on your skin or
clothes, wash it off immediately with clean
water. The leaked fluid may damage your skin.
l Store the battery in a safe place out of the
reach of infants and pets.
l In case of any malfunctions or other problems
occur, contact the place of purchase.
l Never attempt to modify the system by
yourself, as it may cause problems with system
operation.
NOTE
Using the product safely
l For installing or adjusting of product, consult a
dealer.
l The product is designed to be waterproof to
withstand wet weather riding conditions.
However, do not place them into water
deliberately.
l Do not clean the bike in a high-pressure wash.
If water gets into any of the components,
operating problem or rusting may result.
l Do no turn the bike upside down. The display
or the remote switch may get damaged.
l Take the product carefully and avoid subjecting
it to any strong shocks.
l Although the bike still functions as a regular
bike even when the battery is removed, the
light does not turn on if it is connected to the
electric power system. Be aware that using the
bike under these conditions will be considered
non-observance of the road traffic laws in
some countries.
l When charging the battery while it is mounted
on the bike, be careful with below points.
ü When charging, make sure that there is no
water on the charging port or the charger plug.
ü Ensure that the battery is locked into the
battery mount before charging.
ü Do not remove the battery from the battery
mount while charging.
ü Do not ride with the charger mounted.
ü Close the charging port cap when not charging.
3
How to handle the battery
l When carrying the power-assisted bike in a car,
remove the battery from the bike and place the
bike on a stable surface in the car.
l Before connecting the battery, make sure that
there is no water or dirt in the connector where the
battery will be connected.
l It is recommended to use s genuine SR SUNTOUR
battery. If using a battery from another
manufacturer, make sure to carefully read the
instruction manual for the battery before use.
Battery key
l The number which can be found on the battery key
is necessary when purchasing spare keys. Keep it in
a safe place. There is a space to enter the key
number inside of this user manual. Enter the key
number for safely and later reference.
Cleaning
l Do not use thinner or other solvents to clean any of
the products. As such substances may damage the
surfaces.
l Wash the chainrings time to time in a neutral
detergent. In addition, cleaning the chain with
neutral detergent and lubricating it can be an
effective way of extending the useful life of the
chainring and the chain.
l Use a wet cloth, with the water well wrung out,
when cleaning the battery and/or plastic cover.
l For any questions regarding handling and
maintenance, contact the place of purchase.
l Products are not guaranteed against natural wear
and deterioration from normal use and aging.
Disposal information of battery
When disposing the battery, follow the local
regulations. If you are not sure, consult the place or
purchase or a bike dealer.
4
HESC system overview
Operating temperature range during discharge
Operating temperature range during charge
Storage temperature (battery)
Humidity (storage)
Charging voltage
Charging time
Approx. 7 hours for 12Ah pack
Battery type
Capacity
11600mAh (417.6Wh)
Nominal voltage
Motor type
Motor type
Nominal motor power
Maximum motor power
To rq ue
-10℃- 50 ℃/ 15℉- 120
10℃- 40 ℃/ 50℉- 105
-10℃- 30 ℃/ 15℉- 90
℉
℉
℉
5 - 90%
100V - 240VAC
Approx. 5 hours for 09 Ah pack
Li-ion battery
8700mAh (313.2Wh)
36VDC
Rear wheel drive
Brushless DC motor
250W
400W
60Nm
5
Charging the battery
Charging port
LED
For safety this high energy density lithium-ion battery contains a sophisticated battery management system
(BMS). The BMS ensures safe charging and discharge, continuously monitoring each of the cells in the battery
individually. If the current drawn gets too high or the temperature of the battery is elevated, the BMS will
shut the battery down for safety.
If the battery shuts down there are two levels of reset, it may come back on after a press of the power button
on the battery. However if this does not reset you will have to remove the battery from the bike for a few
seconds before refitting it.
u If the E-Bike is not in use, remove the battery and store it at a temperature between 0℃ and 35℃ in a dry
environment.
u Do not store the battery with low capacity for a longer period.
u For long term storage, the battery should have a capacity of at least 40%.
u It is recommended to always discharge the battery completely and then fully charge it.
WARNING
Ø Use batteries and chargers only from SR SUNTOUR
with your bike. Use of other battery packs can
cause injury and involve a risk of fire. If you use
other battery packs, we will assume no liability or
warranties.
Ø The battery must not be charged or stored in direct
sunlight or in the vicinity of high temperatures.
Ø Avoid to contact with metal objects (paper clips,
coins, keys, nails, screws, or other small metal
objects, as this may cause a short circuit. Shorts
caused in this way will invalidate any warranty
claims.
Ø Do not open the battery pack. This could cause a
short circuit. Opening of the battery package will
invalidate any warranty claims.
Ø Do not connect or disconnect the battery
pack/charger with wet hands.
Ø Keep the battery/charger out of reach of children
and animals.
Ø Do not subject the battery or the charger to
physical shocks, e.g., by dropping. If fluid gets in
your eyes, seek medical advice. Fluid that leaks
from the battery pack may cause skin irritation or
burns.
Ø Do not bend the charging cable. The cable must not
be rolled up while charging.
Ø The charger can be hot. Do not wrap cable around
the charger and place it on floor coverings such as
carpets, etc.
Ø If the battery is not fully charged after six hours,
disconnect it immediately from the output to stop
the charging process and contact your place of
purchase. This can lead to overheating, bursting, or
ignition of the battery.
6
When charging the battery alone
Step 1
Ensure that the
power plug is fully
inserted into the
wall outlet.
GREEN
The charger LED will change
to green when the battery is
fully charged.
Step 2
RED
The charger LED will change
to RED while the battery is
being charged.
Battery charging indication
It is suggested to perform a complete discharge and recharge at every 3 months or after
using 40 charging cycles in order to make the battery life longer.
7
Charging battery
On the bike
Off the bike
Battery state of health (SOH)
Press the battery power button for 5 seconds. One of the following patterns of the LEDs will be
displayed showing the remaining capacity of the battery - Battery State Of Health (SOH).
8
Inserting the battery
2
The battery must be inserted
until hearing the “click” sound.
Removing the battery
1
Switch off the system before
removing the battery.
The number located on the battery key is
required when purchasing replacement
keys. Write it down in the box below and
store it in a safe place.
2
1
9
Switching the system on
Insert the battery
and push the
battery ON/OFF
button
Press power
button on
display
Note:
If the battery is not used for 2
hours or longer, it will
automatically go into deep sleep
mode. In that case, press the
power button on the battery for
2 seconds.
Select
mode
Start
pedaling
10
OLED remote display
Suggestion for mounting and key functions
How the system to be switched on
Main switch:
On/Off
Info switch
Mode switch
(up/down)
Main switch:
On/Off
The SR SUNTOUR logo shows for 2 seconds
when the system turns on.
11
Switching the system OFF
Ø Switching OFF
Press power button
on display for 0.5
seconds
Ø Automatic switching OFF
System is automatically switched
off in 5 minutes of non-use.
12
OLED display base function
1. Base screen design
MPH
Assist mode
Current speed
Trip distance
Riding time
MPH
Battery level
MILE
Light icon
2. Clearing the trip distance, trip time, average speed and max. speed
After making sure that the system is not running, and after display turned on more than 10
seconds, press the “M” button for 2 seconds. Then the display goes into the data clean
screen. After that, press “M” button short, then the confirmation window shows up, then
press or button to select “YES” or “NO”. If “YES” is selected, the values of trip distance,
trip time, average speed and max. speed becomes 0 and the screen returns to the default.
MPH
MPH
MPH
MPH
MILE
MILE
13
3. Display for changing assist mode
The assist level can be changed at any time by pushing or button even while pedaling.
Assist mode
TURBO (Assist level: 4)
SPORT (Assist level: 3)
TOUR (Assist level: 2)
ECO (Assist level: 1)
No assist
Increase assist level
Assist mode
Reduce assist level
0mph 10 13 16
14
4. Battery state of charge (SOC)
LED indication on the battery pack
Press the button for a few seconds, then the LED lamps will be displayed as shown here.
0% (Blink 200ms/cycle)
9% – 1% (Blink 1s/cycle)
19% – 10%
39% – 20%
59% – 40%
79% – 60%
100% – 80%
Lighting
No lighting Blinking
Note:
When the battery charge level becomes less
than 5%. The output power will be reduced.
5. Range
30 miles
TURBO
SPORT
TOUR
ECO
50 km
Factors which affect the range
The above figures are based on a speed of 12.5mph or 20 km/h on a level road at 15℃–20℃. The
range is influenced by many factors:
Ø Weight of the rider
Ø Weight of the luggage
Ø Selection of path
Ø Pedaling behavior of the rider
Ø State of maintenance of the E-Bike
Ø Tire condition and air pressure in the tires
Ø Road condition (up & down)
Ø Speed, average speed and changes in speed
Ø Traffic flow, for example, stop and go
Ø Wind direction and wind speed
For information on using the battery, see pages 7-9 and 14-15. You'll also find information on how to
maintain capacity and extend duration.
62 miles
100 km
15
6. Changing information
MPH
MPH
40 MILE
MILE
1stpress “INFO”
• AVG: Average
speed
• MAX: Max speed
• ODO: Total
2ndpress “INFO”
• Battery capacity: %
• ARD: remaining
rideable distance
• Charging cycle
distance
7. Walk assist function
Keep pushing the button for 2 seconds in order to activate the walk assist function, and
release it to exit the walk assist function.
Walk assist icon shows up while pushing the button
MPH
MILE
Long push (2 seconds) → Walk assist function
16
8. Head light and tail light (if applicable)
Keep pushing the button for 2 seconds in order to activate the light function “on” or “off”.
MPH
Light icon shows up when the lights are on
Long push (2 seconds) → Light on/off
Note: Even if the battery becomes
empty, there is some power for the
light.
9. Heat monitoring function
The system is always monitoring the temperature during
usage.
When the internal temperature reaches a certain value, the
assist level gets gradually decreased and the speed
indication starts blinking.
MPH
This is not a malfunction but prevent the internals from
damage. When the temperatures returns to normal value,
the blinking stops and assist shall be back to the normal
level.
17
To r em ov e th e re ar wh ee l
1. Cut the cable ties holding the
waterproof motor cable connector
under the non-drive side chain stay.
Dis-connect the two halves of the
connector. This requires some
‘wiggling’ of the connector to
overcome the sealing.
2. Loosen the motor fixing nuts by
turning counter-clockwise, using a
15 mm spanner, then remove the
wheel.
Motor fixing
nut & washer
Motor fixing
nut & washer
To r e-insert the rear wheel
3. When refitting the wheel, ensure
that the motor stopper from the
motor to fit to the motor stopper
from the frame, then slide the axle
into the rear dropout slots.
4. Put the washers to the motor axle,
then tighten the motor fixing nuts
properly. Suggested tightening
torque is 40-45 Nm.
5. Reconnect the two halves of the
motor connector, making sure that
the arrows on both sides of
connectors are aligned.
6. Keep pushing both connectors until
feeling the click. Replace the zip-ties
to secure the motor cable
underneath the non-drive side of
chain stay.
18
Error codes
No communication
Controller
communication problem
Check the display connects
to display cable, then poweron again
Replace controller or
display or display cable
Over current & over heat
Wrong function with
driver IC
Turn off the system, let the
controller cool down and restart the system
Replace controller
Short for light cable
Bike lightning system
Check the lighting system of
the bike
Replace lighting system or
controller
Flash ROM initialization error
Controller Data failure
Remove the battery for 30
seconds, re
power
Replace controller
Irregular out
connection
Torque Sensor electrical
problem
Check the sensor cable
contacts
Replace the sensor
Mechanical problem
Torque Sensor
mechanical problem
Check the torque sensor
mechanism for any problems
Replace the sensor
Battery error
Battery electric current
sensor error
Remove the battery for 30
seconds, re
power
Replace the controller
Battery overcurrent error
Battery overcurrent error
Turn off the main switch and
turn on
Replace the controller or
battery
Battery communication error
Battery communication
error
Turn off the main switch and
turn on
Replace the battery cable
or battery
Out of battery voltage range
Battery voltage error
Please check that the battery
is dedicated to the system
Replace battery
Battery overheat error
Battery over-temperature
error
Remove the battery and let it
cool down. after that, re
mount, then power-on again
Replace battery
Motor overheat
Motor overheating
problem
Let the motor cool down
Replace motor or motor
cable
HALL sensor error or no connection
Motor Sensor failure
Check the motor
contacts to the motor
Replace the motor if it
doesn't solve this error
Speed sensor error (cannot detect
speed)
Speed sensor failure
Check the magnet sensor in
the motor shell
Replace the motor
SR SUNTOUR HESC system has a
simple diagnostic function. In case
if an error code message code will
appear in the display window, turn
the system completely off and
then on. If the error message still
appears, contact your local dealer
for further assistance.
Error code shows up
Error code list
Error Code Error types Problem Description Trouble shooting If problem still exists
Controller
E00
E01
E04
E05
E21
E22
E31
E32
E33
E34
E35
-mount, then
-on again
Sensor
-put voltage or no
Battery
-mount, then
-on again
-
E41
E42
E43
Motor
-cable
19
Customer support office (Europe)
Company
SR SUNTOUR EUROPE GmbH
SR SUNTOUR Düsseldorf GmbH
Sales, Customer support and
technical services
Sales, Customer support and technical
services
Address
Riedstrasse
Warngau
Germany
Fichtenstrasse
40233 Düsseldorf
Germany
Te l
+49
+49
Fax
+49
+49
E-
service@srsuntour
mail
31, 83627
-(0)802-150-793-0
-(0)802-150-793-29
-cycling.com
115,
-(0)211-5426-8950
-(0)211-5423-4776
www.srsuntour-cycling.com
http://www.facebook.com/srsuntour
SRSUNTOUR
HESC User manual / EU regulation / Ver. 20200711
Specifications are subject to change without prior notice.
Jul., 2020/EU
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