KUGOO G-Booster User manual

User Manual for Electric Scooter

Read Me First
Dear user,
Thanks for purchasing this electric scooter. This electric scooter is an
environmentally-friendly high-tech product as well as an ideal means of transport that
features excellent shock absorption, streamlined appearance, portability and flexibility, good
riding comfortability, high safety and reliability. For better understanding of the
characteristics, technical parameters, correct use and maintenance, precautions and safe-sale
services of this scooter, see to it that you read this user manual carefully before using it.
1. DO NOT use the scooter before learning about its performance.
2. DO NOT lend your scooter to anyone who cannot operate it, juveniles, pregnant women,
or the disabled.
3. DO NOT arbitrarily discard spent batteries to avoid pollution to the environment; see to it
that they are handled by your distributor or service provider.
4. For sake of your own safety, please check whether the braking system functions well
before using the scooter.
5. For safety reasons, DO NOT cover the charger and keep it well ventilated during
charging.
6. When replacing a failed tire, note that the fasteners of the wheel are tightened in case of a
secondary accident due to wheel looseness.
7. For safe use of this product, DO NOT arbitrarily disassemble or modify the circuit or
parts of the scooter.
8. In case of any abnormality, power the scooter off to stop it in order to ensure your safety.
9. Images included in this user manual are intended for operation demonstration and may
not be used for the basis of product inspection.
10. In the event that images included in this user manual might not be in conformity with
the real product, the real product shall prevail.
11. Product performance and configuration that may be improved from time to time are
subject to change without prior notice.
Enjoy your riding!

01
Content
1.Read Me First
2.Content ---------------------------------------------------------------------------------------01
3.Check the Items -----------------------------------------------------------------------------02
4.Structural Diagram --------------------------------------------------------------------------03
5.Improper Use Cases --------------------------------------------------------------------04~05
6.Legal Statement -------------------------------------------------------------------------06~08
7.Dashboard Instructions ---------------------------------------------------------------------09
8.Parameters ------------------------------------------------------------------------------------10
9.How to Use and Pre cautions ---------------------------------------------------------10~12
10.Troubleshooting ----------------------------------------------------------------------------13
11.Overall Diagram ---------------------------------------------------------------------------14
12.After-sale Services ------------------------------------------------------------------------15
13.Warranty Card ------------------------------------------------------------------------------16

02
Check the Items
Electric scooter
1
User manual & warranty card
1
Charger
1
User Manual for Electric Scooter

03
Structural Diagram
①Handle ②Brake ③Main tube ④Folding ⑤Front fender
handle mechanism
⑥Rear ⑦Rear ⑧Disc brake ⑨Rear damper
fender drive motor

04
Improper Use Cases
Watch out for overhead obstacles, such DO NOT pass irregular surfaces at a
as the door frame or the elevator. high speed.
DO NOT ride on slopes larger than DO NOT accelerate while riding
20for extended periods of time. downhill. DO NOT use the front brake
while riding at a high speed.
DO NOT go up/down steps or cross DO NOT stand on the footboard after
obstacles with the scooter. the scooter is powered off and stops.

05
DO NOT ride in the rain Avoid obstacles while riding
DO NOT ride with a single hand or foot DO NOT ride on motor way
DO NOT rotate the handle violently DO NOT ride in water deeper than 2cm
while riding at a high speed
DO NOT ride with both hands leaving DO NOT carry passenger(s)
the handle

06
Legal Statement
As you have been acquainted with this scooter with more riding skills, please:
1. Read this user manual carefully before using it for practice.
2. Those who haven't read this user manual carefully in advance are not allowed to use this
scooter.
3. Install all the parts of this scooter properly following this user manual, otherwise improper
installation may lead to control failure, collision or crash. Turn the power off before installation,
repair or maintenance. Install the parts appropriately, neither too loose nor too tight, otherwise
it might cause damage or failure.
4. DO NOT charge when the slot/socket is wet. Charge the scooter with correct power supply
(200~240V/50-60Hz).While charging, keep children, pet or inflammables away from the
scooter.
5. DO NOT place the battery unit in the environment where temperature is higher than 50 ℃ or
lower than-20
℃
.
6. In the event that the battery unit is damaged or hot, smells abnormally, or smokes, stop using
it immediately and keep it away from other objects.
7. DO NOT open or disassemble the batter unit that contains harmful substance.
8. The scooter that has been fully charged may stand by for 120-180 days, whereas the one that
is undercharged may stand by 30-60 days. Please notice the stand-by time of your scooter in
case of unrecoverable damages to the battery unit due to untimely charging.
9. It is prohibited that you practice outdoor until you have been sufficiently familiar with the
operation methods of the scooter. The more times you practice, the safer you can ride in new
circumstances. Please note the essentials of practice: what you need first is primary practice in
an obstacle-free area (el0m×10m) to practice riding forward, making turns and stopping. Keep
yourself relaxed while practicing. When you practice for the first time, it is recommended that
you do this with the guidance of an experienced person or couch. Try to practice passing
narrow areas, turning and stopping as your practice deepens. You are not allowed to ride on
normal roads until you are able to control your scooter to pass a narrow area precisely and have
simulated all types of terrains. You may have a different riding experience every time you have
your electric scooter upgraded. Therefore, see to it that you practice in the same obstacle-free
area as if you were a beginner for the first time you ride the scooter after upgrading.
10. Check the scooter carefully to make sure there isn't any loose part or damage before riding
it.
11. Watch the crossing carefully before or during you ride your scooter or when you stop it to
avoid any unnecessary damages to yourself, or objects, people or small animals around you.
12. Maintain tire pressure at the level described in the parameters. Excessive tire pressure may
increase the risk of control failure, collision or crash, whereas insufficient tire pressure may
result in wheel damage.
13. Check tire pressure at least twice a month and before you ride for a long distance,
otherwise incorrect tire pressure can cause instability or wheel damage, even an accident.
14. In the event that the tire works abnormally during riding, please stop and examine it in case
of danger.
15. Get on the scooter from either side and wear dedicated protective equipment.
16. DO NOT ride in high-heeled shoes.
17. DO NOT dip the battery and scooter frame into water, expose it to storms or ride in the rain
for a long time. DO NOT clean the scooter with powerful water stream or a high-pressure
water gun to avoid waterlog in the charging port. In the event that your scooter is exposed to
storms for a long time, please stop using it immediately, wipe it with a piece of dry soft cloth,
and contact after-sale service personnel. DO NOT do anything other than wiping the scooter in
case of voided warranty due to any misconduct.

07
18. Scooter's braking performance (including other vehicles on the same road) can significantly
degrade along with tire friction in rainy days, which makes it more difficult to control and thus
lead to control failure. To ensure safe riding during rainy days, please ride at a lower speed
than usual and brake in advance.
19. In the event of low battery, the scooter may not run at a high speed continuously as
expected. You may charge it for better riding experience.
20. With good usability of this scooter, you may be too confident to decelerate when passing
obstacles, uneven or slippery surfaces, soft ground or abrupt slopes at a high speed. You may
collide, fall off or get injured due to control failure under such circumstances. Please ride with
caution in complex road conditions.
21. Note terrain changes while riding, such as road and grassplot.
22. Be careful while turning! You may lose control at fast turning.
23. DO NOT risk passing the abrupt slope, uneven surface or other unfamiliar terrains.
24. DO NOT ride on the motor way or run a red light. Follow traffic rules and give way to
pedestrians.
25. Please respect the rights of the others who share the road or path with you, including motor
cyclists, cyclists, pedestrians and other riders.
26. Strengthen your awareness of self-protection while riding. Watch out for yourself, vehicles
and pedestrians.
27. Be ready to respond to the following situations while riding: an vehicle decelerates or
makes a turn when it crosses the crossing in front of you or approaches from behind
；
a vehicle
with door(s)left open; a pedestrian walks near from the sidewalk
；
there are children or a pet
playing by the road; holes, manhole covers, rails, expansion joints, road/sidewalk construction,
debris, and other obstacles; other situations that may disperse your attention. In those situations,
the wheel can make involuntary turning or catch on something, or some other accident can
occur.
28. Please ride on the bikeway or at the edge of road along the direction of traffic flow or the
direction specified by the regulations of local government.
29. Stop the scooter slowly at the parking sign or by the traffic light and observe the conditions
in the crossing. Bear in mind that you make a way for motor vehicles even though you are
riding on the bikeway to avoid the risk of collision.
30. It is absolutely prohibited that you are towed by another vehicle with hand(s) on the vehicle
while riding.
31. DO NOT stunt while riding.
32. DO NOT ride your scooter in any of the following situations: severe weather, poor
visibility, at dawn, in the evening, in the dark, or exhaustion since an accident is more likely to
occur in event of any of these situations.
33. DO NOT ride your scooter to a remote area alone. Please inform others of your destination
and expected time of arrival even if you ride to the remote area with someone else.
34. As you are higher while standing and riding helmeted on the scooter, watch out while you
are riding indoor, at the door or near any other place that is close to your head.
35. DO NOT wear loose clothes while riding in case they are entangled into the wheel.
36. It is recommended you wear goggles to keep your eyes away from contaminants, dust and
insects. Please wear goggles with darker glasses in strong light and more transparent glasses in
poor light.
37. DO NOT carry a passenger while riding. This scooter is designed for a single rider. It is
prohibited that it is ridden by two or by anyone carrying a baby.

08
38. This scooter cannot be used as a medical equipment or an auxiliary medical means. As a
result, it is required that you are physically qualified to operate this scooter alone without the
assistance from anybody else.
39. DO NOT use your scooter to go upstairs/downstairs, ride it into the elevator or cross the
revolving door.
40. DO NOT ride in poor visibility. Make sure you and others are mutually visible before
riding.
41. DO NOT ride on the highway unless it is allowed by local laws and regulations.
42. DO NOT use your scooter as a cargo carrier.
43. When approaching or crossing an intersection, motor way, turning or passing by a
door/gate, please slow down and give way to the pedestrians, bicycles and motor vehicles.
44. Similar to other means of transport, you need to stay vigilant while riding your scooter. DO
NOT ride your scooter when you fall ill or cannot fully comply with the instructions specified
in this user manual, or after you take medicine or drink alcohol.
45. To avoid distraction while riding, DO NOT make phone calls or do anything that might
distract you so that you are able to concentrate yourself on traffic.
46. Age requirenment:16-50 years old. Tips for parents: as a parent or a guardian, you are
responsible for your child's activities and safety. It is highly recommended that your child is
kept away from the scooter.
47. Avoid abrupt braking, especially on smooth surfaces since this may lead to loss of traction
and increase the possibility of you falling off from the scooter.
48. The scooter can tip to one side if you park it without using the stand.
49. If you use your scooter in summer, note that keep your scooter in a safe place where
temperature is not higher than 45 ℃ ;DO NOT park your scooter outdoor in sunshine for a long
time.
50. If you use your scooter in winter, note that keep your scooter in a safe place where
temperature is not lower than -20
℃
; keep your scooter at room temperature for at least half an
hour before charging it when ambient temperature is lower than 0
℃
.
51. Any modification to this scooter may undermine your safety of riding. Any unauthorized
modification to this scooter is prohibited.
52. You are obliged to be informed of and observe the laws of the place where you are located.
53. We do not warrant the safety if you use any non-original part or accessory for your scooter
even if it has been approved by responsible governmental agencies, nor do our warranty
services apply to this case. Please contact our after-sale service department for any problem,
which is also the most guaranteed option you can resort to.
54. Scooter data and parameters that vary in different models are subject to change without
prior notice.
This statement applies to the laws of the People's Republic of China.
We assume no responsibility for any claim, liability or loss incurred by or possibly incurred by
consumer's violation of the clauses of the legal statement above. The rider by himself/herself
shall undertake the responsibility for any unpredictable or inevitable risk during riding.
You are free to continue to use our product if you accept the clauses set forth in our legal
statement or return it if otherwise.
Please make sure the product and its package are as intact as they don't impact resale before
returning the product to us.
In the event that you resell your scooter someday, bear in mind that a same copy of legal
statement that is deemed as a legal part of this scooter is handed over to its new owner.
If you have any questions or difficulties, we are always at your service.

09
Dashboard Instructions
Batter level indication
There is a five-bar batter level indicator in the dashboard. Battery level will be
indicated by the five bars that are on/off from left to right, respectively. Five bars
means battery level lies between 100%-85%, four bars means battery level lies
between 85%-70%,and so forth. The bars are off one by one as battery is consumed.
When there is only one bar left, it means the battery is exhausting. When the battery
completely runs out, all five bars will be off and the scooter will naturally stop after
freewheeling for a certain distance.
Gear indication
A five-gear indicator is provided in the dashboard. Shift gear using the
upshift/downshift buttons on the right side of dashboard. Three gear indicates the
fastest speed and first gear means slowest speed
Power switch
Power button lies between upshift and downshift buttons. Short press power button to
power the scooter on if when the scooter is in the power-off mode; press power
button for over 2s to power it off.

010
Parameters
Specifications
Content
Note
Dead-weight
24.5kg
single-motor/29.3kg
double-motor
Standard configuration
without package and
accessories.
Max speed
55km/h
Trip distance
~40km single-motor, 80km
double-motor
Measured when the
scooter that is fully
charged runs on a flat road
at an average speed of
20km/h with a load of
75kg.
Gradient
25°
25°for a rider weighing
60kg
Applicable temperature
-10℃~40℃
Most applicable
temperature range is 20℃
~30℃
Battery
48V 10Ah / 48V 20Ah
Max motor power
1200w single-motor
2400w double-motor
Max load
150KG
Charge input voltage
AC 110V~220V/50~6Hz
Charging time
5h single-motor/10h
double-motor
~5h for single-motor /10h
for double-motor (fast
charge available)
Folding size
120*26*52cm
Full size
120*26*118cm
Package size
125*31*64cm
Footpad clearance
21cm

011
How to Use and Precautions
(1) Safe use
1. In the benefit of you and the others, please read this user manual carefully before using the
scooter. DO NOT use it until you have adequate knowledge about its performance. DO NOT lend it
to whomever is unfamiliar with the operation of this scooter.
2. Please observe traffic rules consciously. Ride your scooter in the non-motor lane. DO NOT carry
a passenger.
3. Ride at a proper speed during rainy or snowy days since the scooter can run really fast. If
necessary, brake in advance to ensure the scooter stops within an appropriate braking distance;
4. DO NOT ride in waterlogged areas where seeper depth exceeds 1/3 of wheel diameter.
(2) Check before use
1. Check whether the wheels rotate well and whether tire pressure is in a normal range.
2. Check whether the battery has been fully charged.
3. Check whether the braking system works flexibly and make sure that the power is cut off when
braking.
4. Check whether the folding mechanism has been locked up.
(3) Operations
1. Startup: when the power switch is turned on, the indicator on the dashboard will be on, which
means the scooter is powered up. Then check the single/double driving modes, regulate the speed
threshold to an appropriate gear, press the speed regulating handle slowly and rotate it to an
appropriate position based on speed to keep the scooter running at a safe speed.
2. Avoid frequent braking or startup while riding, which helps prolong the battery's service life.
When decelerating, release the speed regulating handle until motor power is cut off. In the event of
an emergency that requires emergency braking, hold left/right power-cut brake handles tightly and
the power will be cut off along with braking to make sure the scooter stops immediately. Max speed
of this scooter is 55km/hour on the flat road. Double-wheel braking system is provided for the
double-motor scooter, whereas the single-motor version is only provided with a rear-wheel braking
system.
3. When riding at night, turn the front/back LED light on. Turn the electric switch to lock position
when parking in order to ensure safety.
(4) Use of Battery and Precautions
1. The battery unit consists of sealed 18650 li-ion batteries that feature long service life and
leakage-proof sealed structure. Considering the fact that the battery unit has been in storage for a
long time since it is manufactured, please make sure it is fully charged before using the scooter for
the first time. Recharge the battery unit timely in the event of low battery during riding. Have the
battery unit fully charged before long storage, and charge/discharge once a week if possible.
2. Use the dedicated charger only, otherwise battery's service life might be undermined.
3. Battery indication: obverse battery level while riding since the observed result in the stationary
state is inaccurate. Charge the scooter timely in the event of low battery indication.
4. DO NOT touch the metal contacts on the charger socket with hand or metal that may cause
short-circuit in case of accidents.

012
(5) Use of Charger and Precautions
1. Plug the charger's output terminal into charging hole on the battery unit, then connect the charger
to AC 220V/50HZ power supply and make sure the charging indicator is on. To avoid damages to
the controller, power the scooter off during charging time that can last 5-10 hours.
2. Trip distance can decline at a low temperature.
3. Charging mode: it is recommended that the scooter be charged once a day if possible. The whole
charging process is automatically controlled: when the charging indicator turns to green, it means
the battery unit has been fully charged and is in a floating charge state. Floating charge doesn't
cause any damage to batteries. At this point, it is unnecessary to stop charging since very little
energy is consumed during floating charge. 4. In case of damages, avoid violent bump or impact
when using, shipping or carrying the charger. Keep liquid or metal filings away from the charger in
case it is short-circuited or damaged.
5. DO NOT place inflammables under the charger because heat is generated while it is working. It
is prohibited that the charger is covered or surrounded by anything so as not to affect heat
dissipation. The charger shall be used in a well-ventilated place. In the event that there is peculiar
smell, smoke, or excessive temperature (higher than 65 ℃) from/on the charger, stop charging
immediately and have it repaired in the maintenance department.
6. In the event that the charging indicator doesn't turn green for a long time (generally longer than
10 hours) while the charger is in the charging mode all the time, particularly along with a high
battery temperature due to charger failure, battery damage or low voltage, please stop charging
immediately and have the scooter repaired in the maintenance department.
7. For sake of adaptability between the charger and battery, please DO NOT charge your scooter
using chargers other than the dedicated one.
(6) Use of Motor (s) and Precautions
1. Features: new type of brushless low-speed high-power motor that features high efficiency, low
noise, and large mileage at rated load within the normal operating range.
2. Scheduled maintenance: the motor doesn't need any particular maintenance under normal
circumstances.
3. When going uphill with a heavy load, restart the scooter in the event of locked rotor to avoid
damages to the motor or controller.
(7) Routine Maintenance and Precautions
1. Rotate the speed regulating handle slowly rather than violently.
2. DO NOT wash the scooter directly to avoid short-circuit of electric/electronic parts due to
moisture/water.
3. For safety sake, turn the main power switch off when parking the scooter.
4. Change into off-the-road tires when riding in complex road conditions, such as mountain road.
5. Replace for a new brake pad when 1/3 of it has been worn out and braking effect is impacted.
6. Remove the contaminants adhered to brake disc or other surfaces.
7. Check whether or not the electric part of power-cut brake is well connected and whether the
fasteners are loose. Make timely adjustment if any.
8. Make periodical examinations and maintenance, generally once every six months.

013
Troubleshooting
Symptom
Reason
Solution
Speed regulating handle
malfunctions or speed
decreases
1. Low battery voltage；
2. Loose connection in the
speed regulating handle；
3. The spring in the speed
regulating handle is stuck or
fails.
1. Have the battery fully
charged；
2. Re-plug and clamp the fault
part;
3. Replace for a new speed
regulating handle.
The dashboard isn't on
after power is turned on
1. Poor contact between
dashboard and power supply;
2. Dashboard failure or poor
contact of plug-in components.
1. Replace the dashboard or
power plug；
2. Replace for a new
dashboard.
The scooter cannot run
normally after it is
powered on
1. Low battery'
2. Speed regulating handle
failure;
3. left/right power-cut brake
handle malfunction;
4. Controller or motor failure.
1. Have the battery fully
charged；
2. Replace for a new speed
regulating handle；
3. Replace for a new power-cut
brake handle;
4. Repair or replace the
controller or motor.
Short trip distance
1. Battery undercharge;
2. Low tire pressure;
3. Frequent uphill riding or
riding against wind, frequent
brake, heavy 1oad;
4. Aging or normal degradation
of li-ion battery；
5. Friction in braking
mechanism;
6. Rotating parts seized up;
7. Normal battery capacity
degradation due to low ambient
temperature;
8. Continuous riding at a high
speed.
1. Have the battery fully
charged；
2. Pump up the tire;
3. Avoid frequent braking,
startup or heavy load;
4. Replace for a new set of
battery；
5. Adjust the brake;
6. Eliminate seizing-up
phenomenon;
7. It is normal;
8. Ride at an intermediate
speed.
Battery charge failure
1. Loose connection between
the charger plug and battery
socket;
1. Replace the plug/socket;
2. Re-weld the battery cable；
3. Repair the charger or replace

014
2. Battery cable disconnection;
3. Charger failure
for a new one.
Notes
1. Faults listed above have been provided with corresponding solutions. In case the faults cannot be
solved following those solutions, please contact our sales department or have it repaired in our
after-sale service department. DO NOT disassemble the product arbitrarily.
2. DO NOT disassemble important parts within the warranty period, otherwise they won't be
covered by warranty.

015
After-sale Services
Thanks for purchasing this electric scooter. To protect your lawful rights and identify mutual
rights and obligations between you and us during after-sale services and maintenance,
please read this warranty statement and keep your warranty card properly.
You will enjoy the after-sale services provided by our designated after-sale service
department by the warranty card and purchase invoice.
(1) Scope of after-sale services:
The user is entitled to claim for refund or exchange of the product or repair until the scooter
works normally in case of any malfunction or insuperable failure due to quality issues in 7
days since the date of purchase.
(2) Warranty periods for major parts of the portable electric scooter:
Part Name
Warranty Period
Exception
Note
Li-ion battery
Six months
1. Damage due to
long-term power
lack.
2. Waterlog
Replacement out of
the warranty period
will be charged at
cost price
Controller
One year
1. Waterlog
2. Damage by strong
deliberate impact
Replacement out of
the warranty period
will be charged at
cost price
Motor
One year
1. Waterlog
2. Damage by strong
deliberate impact
Replacement out of
the warranty period
will be charged at
cost price
Frame, brake handle,
disc brake,
dashboard,
acceleration handle,
electronic brake
plastic part, tire,
LED lights, and
other quick-wear
parts.
Quick-wear parts are not covered by
warranty
Replacement of parts
that are not covered
by warranty will be
charged at cost price
Note：
1. If you find that the scooter you purchase is inconsistent with what is described in the
warranty card in 7 days since the date of purchase, please contact your distributor as soon as
possible, otherwise we assume no responsibility for any problem as incurred.

016
2. Any scooter beyond the warranty period shall go through periodical maintenance once
every three months in our local after-sale service center; we assume no responsibility for
any problem in the event that you fail to maintain, register or record your scooter
periodically.
3. Major parts of scooter: battery unit, motors, charger, and controller have been labelled
before delivery. Note that those major parts without labels are not covered by warranty.
The following circumstances are not in the scope of free maintenance:
1. Consumables and quick-wear parts are not covered by warranty: (LED lights, tires and
tubes, the whole set of braking system, plastic parts, brake cable, and cover, etc.);
2. Warranted parts that are beyond the warranty period;
3. Damages caused by users for not strictly complying with the instructions.
4. Damages or quality issues due to accidental impact, crash, and contact with corrosive
substance;
5. Purchase invoice is inconsistent with the warranty card;
6. Parts damaged by unauthorized disassembly or modification, or cases where technical
evaluation and analysis cannot be conducted since the initial fault conditions are destroyed
due to such unauthorized disassembly or modification.
7. By no means should appearance issues be the basis for exchange or warranty once the
scooter is sold. Please check the appearance and confirm surface quality carefully in the
purchase.
8. Damages caused by modifications without the prior consent of our company or our
authorized sales and service center.
Warranty Card
Dear user,
Thanks for using our electric scooter. Please fill in the form below clearly for sake of better
after-sale services.
User
Name
Workplace
Telephone
Address
Date of
purchase
Motor serial
number
Model
VIN
Invoice Number
Battery serial
number
Distributor
Distributor
name
Contact
Note