niu KQi3 Pro Electric Kick Scooter for Adults User Manual

June 5, 2024
NIU

Riding Safety

Please read this manual carefully to better understand the product before riding. Please read the important safety precautions in this manual carefully and always abide by local laws and regulations when riding.

IMPORTANT! Read carefully and keep for future reference.

  • Please read the product manual carefully, and ride carefully before you understand the characteristics of the kick scooter.
  • This kick scooter is a transportation and recreational tool. When riding in a public area, this scooter may be treated as a vehicle, and there are potential safety risks with all vehicles. Please use this product according to the instructions and warnings in this Manual to maximize the safety of you and others, and comply with national and local laws and regulations.
  • Even if you fully comply with this safe driving guide, you may face risks caused by illegal driving or improper operation from other vehicles and individuals. Like all vehicles, the faster you drive a kick scooter, the longer the distance required to brake, it is recommended to ride in a relatively closed and flat road environment (such as inside a community, park, special closed venue, etc.). Therefore, it is important to be vigilant and maintain the proper speed during driving, as well as to maintain a reasonable safety distance from others and vehicles. Please be aware of your surroundings and ride at low speed when on unfamiliar terrain.
  • Please respect the pedestrian’s right of way when driving. Avoid scaring pedestrians, especially children. Alert pedestrians when passing behind them and slow down when passing. Pass from the left side of pedestrians if possible (applicable to the country where the vehicle is traveling right]. When facing pedestrians, keep to the right and slow down to pass.
  • When riding in countries and regions where there is currently no relevant regulations for kick scooters, you must strictly comply with the safety requirements for riders in this Manual. The manufacturer will not bear any direct and joint Liability for any property loss, personal injury, accident,s or legal disputes caused by the using behavior violating safety tips in this Manual.
  • Take the time to learn the basics of the practice to avoid any serious accidents that can take place in the first months.
  • Do not lend the kick scooter to a person who can’t operate, so as to avoid injury. Please make sure that the rider has read this Manual and learned the novice teaching before lending the kick scooter to others, and remind riders to wear a helmet and protectors to ensure their safety.
  • Check the basic condition of the kick scooter before each ride. Discontinue use and don’t ride forcibly if you find such situations influencing driving safety that parts are loose, the parts are damaged, the battery life significantly decreases, the tires are flat or excessively worn and the scooter has abnormal noises or alarms.
  • Please properly keep your product packaging in case you need to return or repair in the future. If you use non-original packaging, you will be responsible for the damage caused during transportation, additional logistics costs, and other related expenses.

Packing list

Parts Info

Dashboard Info

1. Bluetooth status
4. Fault warning
7. Pedestrian mode status
Short press 5 to get into the pedestrian mode,the speed will be limited to 6KM/H, Short press the button to exit this mode| 2. Abnormal temperature warning
5. Real-time vehicle speed/ fault code display
8. Riding mode
E-SAVE lights up: Eco mode
E-SAVE goes out: Sport mode
E-SAVE flashes: Custom mode [in-app).| 3. Light status
6. Battery indicator
9. Operation keys
Long press the power button to turn on or off the device
Short press
1 for gear switch
Short press 2 for light switch.
Short press
3 for speed unit switch
Short press *5 to get into the pedestrian mode
---|---|---

Installation Guide

Body assembly

  1. Secure the scooter neck tube and open the kickstand.

  2. Connect the handlebar to the main line connector of the vertical tube, and install the handlebar to the vertical tube .

  3. Confirm that the device will power on and off after assembly.

  4. Lock the screws on both sides alternately with the hexagon wrench in the packaging box [tightening torque: 4~5N*m], that is, the assembly is completed.

Folding and handling

Folding
Confirm that the kick scooter is powered off, then hold the vertical tube, open the folding wrench, align it to the position of the mudguard hook, and finally hook the hook under the dashboard to the rear end of the body. Press the buckle button on the mudguard when opening. After the hook under the dashboard is separated from the folding buckle, straighten the vertical tube to lock the folded plate and then turn the folding wrench back.

Handling
Fold and then hold the standpipe with one hand or both hands before transport.

Parking instructions

Please turn on the parking device after use and park the vehicle. Please turn on the parking device before use.

Charger connection

Firstly open the charging port, then plug the charging plug into the body charging port and finally connect the power supply to charge. After the completion of charging, fastening down the charging port to beware of water intake.

CAUTION

  • Do not charge when the charging port, charger or power socket is wet.
  • Turn off the power before charging.
  • The original charger provided by Niu can be only used when charging. Do not use any other type of chargers.
  • Do not charge or continue using the battery if the battery is damaged or flooded.
  • Fasten the rubber plug of the charging port before or after charging.
  • Do not charge outdoors.
  • Do not ride while charging.

Fast locking

Lock

  1. Connect your electric scooter to the installed APP of Niu Technologies via Bluetooth, and activate the fast locking function in the APP.

  2. Long press the On/Off button for 5s to lock your scooter, with the lock icon displayed on the meter.

Unlock

  1. Long press the On/Off button for 2s to start your scooter.

  2. Click the Unlock button on the APP interface to unlock your scooter connected to the APP.

Downloading the APP

https://www.niu.com/download/qrcode?app=niu

Scan the QR code on the left, install the Niu E-scooter App, bind and activate the scooter according to the prompts.
Safety risks are present when using the scooter. You must complete the teaching guide for newbies through the APP before initial use. For your safety, the new scooter is inactive and will be locked in the E-save position until you complete all the teaching contents for newbies. You need to install the Niu Technologies app on your mobile device, connect it to your kick scooter via Bluetooth, complete the activation and binding according to the prompts In-app, and learn the contents for newbies. You can enjoy all the functions of the kick scooter after all these contents are completed.

Your mobile phone needs to be the Bluetooth functional version 4.2 or above; 10S system version 9.0 or above; AndroidTM system version Android 5.0 or above.

  1. After installing the APP, please log in and register.

  2. Long press the button to power it up and the Bluetooth icon will start flashing.

  3. lick [Me], [Device Binding], and [Bind with Bluetooth] to connect to your scooter. The scooter beeps, indicating that the Bluetooth is connected successfully. The icon will stop flashing and keep on once the connection is successful.

  • The account paired with the Bluetooth for the first time is the vehicle owner. If the vehicle owner changes the mobile connection, the Bluetooth pairing needs to be reset.

  • In case of changing the account connection, the original vehicle owner’s account needs to be unbound.

    1. Activate the scooter according to the prompts of APP and learn how to drive safely. Now you can get your scooter started, check the status of your scooter and interact with other riders through the APP. Enjoy yourself!

ARE YOU READY?

Precautions before riding:

  • Ensure that the steering system and folding system are working properly, and the components are tightly secured.
  • Check whether the wheel axle is fastened to the body to ensure that the wheel can rotate normally and the brake system can work normally.
  • Please check the tire pressure before riding. It is recommended that the tire pressure be between 45-50psi.
  • Check the wear of the tires and brake pads. If the wear is serious and needs to be replaced, please contact the dealer in time.

The risk of fall injuries is present during practice, so please wear a helmet and protectors all the way.

  1. Turn on the power and check the power indicator.

  2. Stand on the pedal with one foot and push back with the other foot.

  3. When the kick scooter is sliding, stand on the pedal with the other foot, keep both feet stable, while gently pressing the throttle twistgrip. [The speed above 4km/h will start the throttle]

  4. Release the throttle twistgrip and use the energy recovery to achieve the effect of deceleration. Emergency braking requires powerful grip on both sides of the brake levers.

  • The deceleration can be adjusted through energy recovery within the app.

    1. The body should lean slightly to the direction of turning, and slowly turn the handlebar during a turn.

Warnings

|
---|---
It is forbidden to drive into public roads, motorways or highways.| Please avoid riding in the rain. Braking distance will be extended in wet weather, so drive carefully.
|
It is forbidden to drive if water level exceeds 2cm.| It is forbidden for multiple people to drive a scooter or to drive with children in arms.
|
Do not ride with one foot on the pedal or on the ground. Please always wear shoes.| Always keep your hands on the handlebar when driving.
|
It is forbidden to step on the back of the mudguard.| It is forbidden to step on the back of the mudguard.
|
---|---
Do not accelerate downhill.| It is forbidden to ride up and down stairs on kick scooters as well as jumping
obstacles.
|
Please avoid obstacles. Turn on the vehicle headlight when driving in the dark.| Please avoid obstacles. Turn on the vehicle headlight when driving in the dark.
|
Do not drive indoors.| It is forbidden to turn the handle substantially it high speed.
|
Do not twist the throttle when walking with the kick scooter.| Do not twist the throttle when walking with the kick scooter.

WARNING

  • WARNING! As with any mechanical component, a vehicle is subject to high stresses and wear. The various materials and components may react differently to wear or fatigue. If the expected service life for a component has been exceeded, it may break suddenly, therefore risking causing injuries to the user. Cracks,
    scratches and discoloration in the areas subject to high stresses indicate that the component has exceeded Its service life and should be replaced.

  • Traffic conditions in the city has many obstacles to cross such as curbs or steps. It is recommended to avoid obstacle jumps. It is important to anticipate and adapt your trajectory and speed to those of a pedestrian before crossing these obstacles. It is also recommended to get out of the vehicle when these obstacles become dangerous due to their shape, height or slippage.

  • WARNING! Keep plastic covering away from children to avoid suffocation.

  • Get closer to your seller so he can refer you to an appropriate training organization.

  • Avoid high traffic or overcrowded areas.

  • In any case, anticipate your trajectory and your speed while respecting the traffic rules, sidewalks and the most vulnerable, the pedestrians.

  • Notify your presence when approaching a pedestrian or cyclist.

  • Walk while crossing the protected passages.

  • In all cases, take care of yourself and others.

  • Do not divert the use of the vehicle.

  • This vehicle is not intended for acrobatic use.

  • Caution, the brake may become hot in use. Do not touch after use.

WARNING

  • Eliminate any sharp edges caused by use.
  • Do not modify or transform the vehicle, including the steering tube and sleeve, stem, folding mechanism and rear brake.
  • The self-tightening nuts as well as the other self-tightening fastenings may lose their efficiency so they may need to be retightened.
  • Do not make any modifications that are not noted in the instructions.

Troubleshooting

Troubleshooting of the whole vehicle

Malfunction Description Causes Troubleshooting
31 displayed Battery MOS tube damaged Please contact the dealer
32 displayed Battery moistened by water
37 displayed Battery short-circuit protection warning
33 displayed Battery open-circuit or imbalance warning
34 displayed Batter low-temperature warning Place the vehicle at room

temperature and reuse it after the temperature is recovered
35 displayed| Batter over-temperature warning| Please make the vehicle still and use it after the internal temperature of the vehicle is normal
38 displayed| Battery charging overcurrent protection warning| Please disconnect the charger
39 displayed| Battery discharging overcurrent protection warning| Please contact the dealer
40 displayed| Battery over-charging warning| You can ride normally, and it can recover after electricity reduces
41 displayed| Battery over-discharging warning| Please charge the vehicle
42 displayed| Battery communication fault and verification failure| Limit speed to 6km/h, please contact the dealer
01 displayed| Power tube fault of the controller| Please contact the dealer
02 displayed| Brake fault| Please check the state of the accelerator switch or contact the dealer
03 displayed| Accelerator fault| Please check the state of the brake handle or contact the dealer
04 displayed| Controller overcurrent| Please contact the dealer
05 displayed| Controller over-temperature| Please make the vehicle still and use it after the internal temperature of the vehicle is normal
06 displayed| Fault of driving power of the controller| Please contact the dealer
08 displayed| Undervoltage/overvoltage of the controller| Please charge the vehicle or contact the dealer
07 displayed| Controller communication fault and verification failure| Please contact the dealer
10 displayed| Motor locked-rotor
11 displayed| Motor phase loss
12 displayed| Motor HALL fault
13 displayed| Motor over-temperature| Please make the vehicle still and use it after the internal temperature of the vehicle is normal

Maintenance and Care

Vehicle cleaning
Wipe the main frame with a soft wet cloth. If buildup is formed and is hard to be cleaned, you can apply toothpaste and rub with a toothbrush repeatedly, and then remove residue with a soft wet cloth.

Do not clean your scooter with alcohol, gasoline, kerosene, or other corrosive and volatile solvents. These substances may damage the appearance and internal structure of the vehicle body. Do not spray the scooter with pressure water guns or water pipes. Before cleaning, make sure that the scooter is in shut-down state, non-charging state, and the charging port has been buckled tightly, otherwise, damage may be caused to electric parts by water leaking.

Vehicle storage method

  • Accessories and any additional items which are not approved by the manufacturer shall not be used.

  • Please store the vehicle in a flat, stable, well-ventilated and dry place.

  • Prolonged exposure to UV rays, rain and the elements may damage the enclosure materials, store indoors when not In use.

  • Fora long storage period, keep the battery power between 30%-70% and recharge it every two months to extend the battery life.

  • After long-term storage, please fully charge the battery before use and check the tire pressure.

  • Do not charge when the charging port or charging cable is wet.

  • If any abnormal sound and noise are caused during riding or pushing, do not ride. Carefully check the source of the abnormal sound and noise before riding again.

  • Do not use other models or brands of battery packs, otherwise there may be a potential safety risk.

  • Please charge the battery with the original charger, otherwise the battery will be damaged or in danger of ignition or explosion.

  • Do not touch the battery contacts, and do not open or expose the shell. Avoid short circuit caused by metal objects contacting the battery contact, otherwise battery damage or personal casualty may be caused.

  • Do not store the vehicle near a heat source, otherwise it may cause battery failure, overheating, and even fire risk; If the battery is damaged or water enters the battery compartment, it is prohibited to charge or continue using the battery.

  • lt is strictly forbidden to immerse the battery and the vehicle body in water or ride in the rain, as well as clean the vehicle body with high-pressure water pipes in order to prevent water from entering the battery compartment, circuit chip, etc.

  • Do not take the battery out. The operation of the vehicle body may be affected due to the wrong disassembly.

  • Do not hesitate to contact your dealer or send an email to the following mailbox.

Disc brake debugging

  • Excessive braking force
    If you feel that the brake is too tight, use a wrench to loosen the brake arm nut 1 counterclockwise, return the brake cable to shorten the length of the exposed tail, and lock the nut clockwise 1 to confirm the brake force and complete the adjustment.

  • Insufficient braking force
    If you feel that the brake is too loose, use a wrench to turn the fine adjustment screw 3 counterclockwise, and then confirm the braking force by the brake action, and tighten the limit nut 4 clockwise after completion.

Changing Brake Pads

  • Completely loosen the brake cable and remove the brake calipers from the vehicle body with a 4MM hexagon wrench.
  • Tilt the tail end of the brake pad return spring and remove it.
  • Remove the old brake discs one by one and clean the brake piston with a clean cloth.
  • Put the new brake discs in one by one, and push the two brake discs apart with tools.
  • Push the return spring to the bottom through the gap of the brake discs.
  • Install the calipers to the vehicle body, thread the brake cable and lock it in place.

Handlebar shaking debugging

Check whether the vertical tube screws are loose. If so, fasten the standpipe screws first, and then fasten the two screws of the folding mechanism with a 6mm hexagon wrench.

Use of the extension nozzle

If your kick scooter front and rear tires are underinflated, please use the extension nozzle to connect the car body tires to inflate. First remove the front and rear tire inflatable nozzle cap, and then tighten the extended inflatable nozzle and tire inflatable nozzle,and connect the pump to inflate after they are to be tightened.

Specifications

| KQi3 Pro| KQi3 Sport
---|---|---
Product size| Before folding:
Length x width x height| 46.2 x 21.3 x 47.3 in ( 1,173 x 542 x 1,202 mm)
After folding:
Length x width x height| 46.2 x 21.3 x 20.7 in ( ,173 x 542 x 525 mm)
Product weight| Net weight| Approx. (44.8 lbs) 20.3 kg| Approx. (40.6 lbs) 18.4 kg
Riding request| Maximun Load| 220 lbs (100 kg)
Age range| 14+ years old
Height| 3’11%6’6″ (120-200 cm)
Vehicle parameters| Maximum vehicle speed| Approx. 19.9 mph (32 km/h)| Approx. 17.4 mph (28 km/h)
Average battery life”!| Approx. 31 miles (50 km)| Approx. 24.9 miles (40 km)
Maximum Slope121| 20%| 15%
Applicable terrain| Flat pavement road, steps not higher than 0.4in (1cm), and road gap not exceeding 1.2in (3cm)
Working temperature| 14-113°F (-10-45°C)
Storage temperature| 32-104°F (0-40°C)
A-weighted emission
sound pressure level| 50dB
IP rating| IP54
Battery pack parameters| Rated voltage| 46.8 VDC
Rated voltage| 486.7 Wh| 365 Wh
Charging voltage| 54.6 VDC
Charging temperature| 32-113°F (0-45°C)
Battery management system| 7th NIU Energy1M smart power tech
Motor parameters| Rated power| 350 W| 300 W
Tire parameters| Tire technical specifications| 9.5″ x 2.5″
Recommended tire pressure| 45-50 psi
Charger parameters| Input voltage| 100-240 V – 2.0 A 50-60 Hz
Rated output| 53.5 V 2.0 A
Output power| 108 W
Charging time| Approx. 6h| Approx. 5h

  1. Average battery life: It is tested when the driver weighing 165lbs(75kg) drives at a constant speed of 9.3mph(15km/h) on a flat road at an ambient temperature of 77°F (25C) in case of a full battery. (Factors affecting battery life include speed, number of startups and shutdowns, kinetic energy recovery setting, driver weight, and ambient temperature.]
  2. Maximum Slope: The maximum gradient that a driver weighing 165lbs[75kg) gets through at a constant speed of 5mph (8km/h) in the ambient temperature of 77°F (25C) in case of a full battery.

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