techtron Pro 3500 User manual

Pro 3500
Instruction Manual

2
Ethos
Future Tech. Today
Welcome to techtron® by combining passion, drive and
intellect with market leading research and cutting-edge
technology, we innovate and deliver premium quality
products that excite, inspire and challenge the sector.
Striving for perfection, embracing new ideas and
investing in the future is our ethos.

3
Contents
Product and Accessories 4
Assembly 6
Charging 8
Display Panel Function 9
Folding 10
techtron® Smart App 12
Maintenance and Warranty 14
Rider Guidance, Safety and Specications 17
Troubleshooting 18
IMPORTANT! Read carefully and keep for future reference.

4
Product and Accessories
AAccelerator
BMain display panel
CBrake lever
DFolding handle and lock
EBattery compartment
FMotor wheel
GCharger port
HFront and rear lights
I Rear wheel disc brake
JKickstand
H
H
B
C
J
A
D
G
E
I
F

5
Product and Accessories
M3 hex screws x4
Charging adaptor x1
M5 hex key x1
M3 hex key x1

6
Assembly
Unfold the scooter
standpipe, move the
handle into position
and lock the folding
mechanism in place.
Install the crossbar
on the standpipe.
1
1
2
2

7
Assembly
Using the M3 hex key,
fasten the crossbar onto
the standpipe with
the four M3 hex screws.
3

8
Charging
To charge the techtron® eScooter
simply open the rubber stopper
on the side of the base and plug into
the power supply.
Please allow 5-6 hours for the
eScooter’s battery to fully charge.
Replace the stopper after charging
to prevent water damage.
Battery level indicator
Five bars along the centre of the display
panel indicate the current charge status.
When only a single bar remains, electricity
is less than 10% and the scooter
will eventually slow to a natural stop
and must then be re-charged.

9
Display Panel Function
Speed display
The techtron® Pro 3500 foldable eScooter is capable
of a maximum speed of 25km/h, with two pre-congured
factory default speed modes.
Factory default speed modes
Speed mode Maximum speed
1 (green LED) 20km/h
2 (red LED) 25km/h
These presets can be changed via the techtron® smart
app (see page 12). The app allows the user to set a pre-
determined speed for each speed mode. In addition,
the app allows the user to toggle the speed displayed
between mph and km/h.
Display panel button
To turn the eScooter ON press the button briey on the
main display panel. A short press of the same button will
turn the main light ON/OFF. A quick double press of the
button will allow the user to toggle between speed mode
1 (green LED) and speed mode 2 (red LED). To turn the
eScooter OFF, hold down the button for two seconds.
Cruise control
To activate cruise control press and hold the accelerator at
the same speed for ve seconds, the device will beep when
the mode is activated. Cruise control will deactivate when
applying the brake.
Power saving
When not in use the techtron® eScooter will power OFF
automatically after 15 minutes.

10
Folding
1

11
Folding
Folding mechanism
The Pro 3500 can be
easily folded for carrying
and transporting. First
unlock the standpipe in
gure 1, then collapse the
scooter and hook onto
the folding clasp located
on the rear mudguard as
shown in gure 2.
2

12
techtron® Smart App
Download to your smart device via
the Apple App Store or Google Play.
t-802358
0.0
km/h
71%
Light: ON Settings
Speed mode 2
Unlocked Connection
Trip Info Cruise: ON
Settings
Unit: Metric
Cruise control
Riding mode
Mode 2 speed limit value 25Km/h
Speed Mode 2
Zero Start
OFF
ON
2
1
Your eScooter can be congured using the techtron® smart app. Use it to set
up your desired settings such as riding mode and speed limiter. You can even
lock the scooter to prevent unauthorised access.
Please note - the eScooter will remember all settings applied
in the techtron® smart app even when Bluetooth® is disconnected.
Google Play Apple App Store

13
techtron® Smart App
Trip Info
Remaining range 21.3Km
Mileage for this journey 3.7Km
Total mileage 40.6Km
Scooter temperature 12.8˚C
Total driving time 6H 44M 42S
Current speed 25Km/h
Current 1.5A
Voltage 36.2V
Power 350W
Error code 0
Warning code 0
Electronic control version 80.7.1 (00030251)
Bluetooth version 6.9.3 (03)
App Version 1.1.7
Firmware upgrade
3
App store is a service mark of Apple Inc.
Android and the ‘Google Play’ logo are trademarks of Google Inc.
Home screen
View the remaining range of your eScooter,
so you can plan your journey.
Light - Turn the main light On/O.
Settings - Access further controls.
Lock - Secure your eScooter against
unauthorised access.
Connection - Discover and pair your
eScooter to your smart device.
Riding mode - Toggle between riding modes
Trip info - View the latest trip information.
Cruise control - Quickly toggle this option
On/O.
Settings
Unit - Change the unit of measurement used
to display your speed from km/h to mph.
Cruise control - Maintain a constant speed
for those longer journeys.
Riding mode - Choose your preferred speed
preset (options vary depending on model).
Speed limiter - Control how fast the scooter
can go if being used by children.
Zero start - Enable the option to start your
eScooter from stationery position (enabling
this option can reduce battery range).
Trip info
View your eScooter’s latest trip information,
anything from total driving time to voltage
and power statistics.
The device rmware can also be upgraded
by the user from this menu (internet
connection required.
3
2
1

14
Maintenance and Warranty
Standpipe shake
Should your eScooter’s standpipe
develop a slight shake over time,
it may be necessary to tighten
the two folding mechanism screws,
using the M3 hex key.

15
Maintenance and Warranty
Brake adjustment
To tighten the brakes, simply
insert the M5 hex key into the
slot and turn counterclockwise
to release the pressure plate
screw. Return the brake line
to make the exposed tail length
slightly longer, then lock the
pressure plate screw.
If the brakes are too tight, release
the pressure plate screw again
and pull the brake cable to make
the exposed tail length slightly
shorter, then lock.
Fine tuning loose
or tight brakes
The brakes can be ne tuned
by hand. Turn the screw
counterclockwise to tighten the
brakes and clockwise to loosen.

16
Maintenance and Warranty
This marking indicates that this product should not be disposed
with other household wastes throughout the EU. To prevent possible
harm to the environment or human health from uncontrolled waste
disposal, recycle it responsibly to promote the sustainable reuse
of material resources. To return your used device, please use the return
and collection systems or contact the retailer where the product was
purchased. They can take this product for environment safe recycling.
All product images shown in this instruction manual are for illustrative purposes only and may dier slightly from the actual product.
Cleaning and storage
Use a soft cloth dipped in a small amount of water to wipe the eScooter; for any dicult
to clean areas, you can use toothpaste and gently brush with a toothbrush, then use a damp
cloth to clean.
Do not use alcohol, petrol, kerosene, or other corrosive, volatile chemical cleaning solvents,
as this will seriously damage the appearance and internal structure of the body. Do not use
pressure washers to clean. Ensure that the charging cable has been unplugged and the
rubber stopper on the charging port is closed. Otherwise, there may be a chance of electric
shock or serious failure due to internal water intake.
Warranty policy
techtron® oers a one-year guarantee on rechargeable batteries. Two-year guarantee
against parts and/or manufacturing defects, Terms & Conditions/Exclusions apply,
please see website for further details.
Product registration
For exclusive oers, product support and information on the latest techtron® innovations,
register your product by completing the form on the website with your serial number
and details - https://techtron.co/pages/warranty
Battery maintenance and disposal
Do not touch the battery contacts, and do not open or expose the shell. Avoid metal objects
touching the battery contacts, as this will cause a short circuit, damage to the battery,
or even personal injury.
Please refer to the model specications in this manual for your eScooter’s charging
requirements. Only use a charger with the correct voltage otherwise there will be a risk
of damage to components or re.
Ensure batteries are disposed of responsibly. Recharge the battery and store after use,
in order to preserve battery life. Do not place the battery in high temperatures higher than
50°C or below -20°C, or it may lead to battery failure, overheating, or even risk of re.
Always store in a cool dry place fully charged. A battery will be at optimum performance
at a standard room temperature. Warranty may be invalid if the battery is removed.

17
Rider Guidance, Safety and Specifications
Model Pro 3500
Range 25km
Power 350W
Top Speed 25 km/h
Speed Modes 2
Hill Incline 15%
Rider Age 16-50 years
Max. Load 120kg
Battery 37 V 7.5Ah
Charger 42V/1.5A
Storage Temp -20˚C to 45˚C
Working Temp -10˚C to 40˚C
Rider Height 120cm - 200cm
Frame Material Aluminium
Current Limit 16A
Motor Type Brushless DC
IP Rating IPX4
Foldable Yes
Tyre Size 8.5”
Model specications
Any enquiries regarding
maintenance, accessories, security
or warranty, please visit the techtron
website:
www.techtron.co
or email us:
[email protected]
Rules of the road and licensing guidance
For the latest up-to-date safety, licensing guidance and rules of the road for UK eScooter users,
please consult the UK Government website:
www.gov.uk/guidance/e-scooter-trials-guidance-for-users
Helmets and clothing
Wearing cycle helmets are recommended when
riding an eScooter, but they are not a legal
requirement. Always make sure that your cycle
helmet conforms to current regulations, is the
correct size, and is securely fastened. Wear light-
coloured or uorescent clothing so that other road
users can see you at night or whenever visibility
is poor.
As with any vehicle, the faster the user is travelling,
the more braking distance is required. Please
respect pedestrians’ right of way when riding
the techtron® eScooter.
Riding safely
Please check the eScooter before riding.
Check for loose parts and general tyre wear and tear.
Always start the eScooter by pushing o with your
foot rst, this reduces the start load on the motor,
ensuring a longer battery life.
The techtron® eScooter is designed to perform best
on smooth dry surfaces, therefore avoid riding
on uneven gravel, sand, grass, slick or wet surfaces.
Never ride over curbs or jump. The eScooter is not
designed for this type of riding and any damage
caused to the eScooter while riding in this manner
will void the warranty.
techtron® accepts no liability for any injuries caused
to rider or damage to property which may arise while
riding the eScooter. Never ride the scooter with more
than one person, as this may lead to loss of control.
It is the rider’s responsibility to ensure they comply
with all local laws and regulations that may apply
while riding the eScooter.

18
Troubleshooting
Error codes and what they mean
Faults with techtron® eScooters rarely happen, but if you’re unfortunate enough
to encounter a problem, just cross reference the error code shown on the scooter’s
display panel with the ones listed in the table opposite.
If the fault can’t be resolved through simple troubleshooting, and providing your
scooter is in warranty, then get in touch with our customer services team. Let us know
the error code displayed on your scooter, or give us an idea of the problem you’re
having and we’ll do our very best to get you back up and riding as soon as possible.
Product registration
For exclusive oers, product
support and information on the
latest techtron® innovations,
register your product by
completing the form on the website
with your serial number and details:
https://techtron.co/pages/warranty

19
Troubleshooting
Error code Description Solution
4Short circuit Check for a short circuit in the wiring/installation
or replace the controller to eliminate the fault.
9Sub-motor
communication failure
(dual drive models only)
Check the connection line between the secondary
and primary controller.
10 Display panel
communication failure
First check the connection wire between the display
panel and the controller assembly line. Then shut down
the eScooter, re-plug the assembly line interface and
restart. If the fault has not disappeared, instrument
or controller may need to be replaced to eliminate the
fault.
11 Abnormal motor
current sensor
Check the line of the phase line of the controller
or motor.
14 Throttle hall anomaly Check whether the throttle is reset to zero, whether
the throttle cable and throttle are normal or not.
Unplug the throttle cable and restart the eScooter
to troubleshoot the problem.
15 Brake hall anomaly Check whether the brake is reset to zero position
or not, check the brake line and the brake normal
or not. Try unplugging the electronic brake wiring and
restarting the eScooter to eliminate the problem.
16 Motor hall anomaly Check that the motor hall wiring looks normal.
If problem occurs when braking, the motor
or controller will need to be replaced.
19 Secondary motor hall
anomaly (dual drive
models only)
Check that the secondary motor hall wiring is normal.
Replace motor or controller to eliminate the problem.
21 BMS communication
anomaly
BMS communication abnormal
(non-communication battery is ignored).
50 Bus high voltage Check the battery voltage is normal, cycling failure.
Replace the battery or controller to eliminate the
problem.
53 System overload Shutdown and restart the eScooter. If the error code
is still displayed, the controller needs to be replaced.
55 Controller high
temperature alarm
If the temperature of the controller is too high, allow
the eScooter to cool and then restart. If vehicle fails
to boot, the controller will need to be replaced.

For further information and advice you can find us at:
techtron® Unit 2, Jowett Street,
Bradford, BD1 2JX. UK.
e: [email protected]
t: 01274 307310
w: techtron.co
Research & Development 2100 Geng Road, Suite 210,
Palo Alto, California, 94303 USA.
e: [e-mail] w: techtroncalifornia.com
techtron® is a division of Multibrands International Ltd.
V02 15.6.2022