1. Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your NIU KQi Air Electric Scooter. The KQi Air is designed for adult riders, featuring an ultra-light carbon fiber frame, extended range, and advanced safety features. Please read this manual thoroughly before your first ride to ensure proper usage and to maximize the lifespan of your scooter.
Figure 1.1: The NIU KQi Air Electric Scooter, showcasing its sleek design and compact form factor.
2. Safety Information
Your safety is paramount. Always adhere to local laws and regulations regarding electric scooter usage. Wear a helmet and appropriate safety gear during operation. The NIU KQi Air Electric Scooter is UL 2722 certified, ensuring high standards of electrical safety.
2.1 Key Safety Features
- Turn Signals: Integrated for clear indication of turns.
- Integrated Electric Horn: For alerting pedestrians and other vehicles.
- Front Halo Light & Rear Lighting: Ensures visibility during low-light conditions.
- Dual Brakes (Disc Front + Rear EBS): Provides reliable stopping power with regenerative braking.
- 9.5-inch Tubeless Fat Tires: Offers enhanced stability and shock absorption.
Figure 2.1: Visual representation of the scooter's integrated safety and control features, including lighting and signaling.
2.2 General Safety Guidelines
- Always wear a certified helmet and protective gear (knee pads, elbow pads, wrist guards).
- Do not ride in heavy rain, snow, or icy conditions. The scooter is water-resistant (IP54), but not waterproof.
- Maintain a safe distance from other vehicles and pedestrians.
- Avoid sudden acceleration or braking, especially at high speeds.
- Ensure all components are securely fastened before each ride.
- Do not exceed the maximum weight limit of 265 pounds (120 kg).
3. Product Features and Design
3.1 Ultra-Light Carbon Fiber Frame
The KQi Air features a premium Pyrofil TR50S15L carbon fiber frame, making it exceptionally lightweight at only 26.2 lbs (11.9 kg). This material provides an outstanding strength-to-weight ratio and is approximately three times stronger than aluminum, enhancing both portability and durability.
Figure 3.1: Illustration of the scooter's carbon fiber frame construction, emphasizing its strength and lightweight properties.
3.2 Performance Capabilities
- Max Speed: 20 mph (32 km/h)
- Max Range: 31 miles (50 km) on a single charge
- Motor Power: 700W Max Power, capable of climbing 20% inclines.
Figure 3.2: Overview of the scooter's performance specifications, including range, speed, hill climbing ability, and motor output.
3.3 Enhanced Comfort and Control
- Wider Handlebar: 29% wider for easier steering and improved control.
- Wider Deck: 41% wider, providing extra foot space and stability with an anti-slip surface.
- 9.5-inch Tubeless Tires: 44% wider, delivering improved grip, comfort, and durability.
- 75° Tilt Angle: Optimized geometry for balanced steering and rider comfort.
- Integrated Display: A bright, seamless display showcases key information.
Figure 3.3: Visual breakdown of design elements contributing to rider comfort and control.
3.4 Smart Connectivity
The NIU KQi Air offers advanced smart features for enhanced security and user experience.
- NFC Smart Lock: Secure and convenient locking mechanism.
- Bluetooth Unlock: Seamless connection via the NIU Smart App.
- NIU Smart App: Provides real-time information on battery life, speed, distance traveled, and anti-theft features.
Figure 3.4: Demonstration of NFC and Bluetooth unlocking capabilities, integrated with the NIU Smart App.
4. Assembly and Initial Setup
4.1 Unboxing and Component Check
Carefully remove all components from the packaging. Verify that all parts are present:
- NIU KQi Air Scooter (main body)
- Handlebar assembly
- Charger
- User Manual (this document)
- Assembly tools (if included)
4.2 Handlebar Installation
- Lift the stem of the scooter to its upright position until it locks into place.
- Connect the electronic cable from the handlebar to the cable extending from the stem. Ensure the connection is secure and aligned correctly.
- Slide the handlebar onto the stem, aligning the screw holes.
- Secure the handlebar using the provided screws and tools. Tighten firmly but do not overtighten.
4.3 Initial Charging
Before first use, fully charge the scooter's battery. The NIU KQi Air features a 48V Lithium-ion battery with innovative 21700 LG battery technology and a NIU Energy Battery Management System. A full charge takes approximately 5 hours.
- Locate the charging port on the scooter.
- Connect the charger to the scooter's charging port.
- Plug the charger into a standard power outlet.
- The indicator light on the charger will change (e.g., from red to green) when charging is complete.
Figure 4.1: Internal view of the scooter's battery system, highlighting its advanced energy storage capabilities.
4.4 NIU Smart App Connection
Download the NIU Smart App from your device's app store. The app is essential for unlocking full functionality, monitoring scooter status, and receiving firmware updates.
- Turn on the scooter.
- Enable Bluetooth on your smartphone.
- Open the NIU Smart App and follow the on-screen instructions to pair with your KQi Air scooter.
- You may be prompted to perform initial setup or firmware updates. Complete these steps for optimal performance.
5. Operating the Scooter
5.1 Power On/Off
- To Power On: Press and hold the power button on the handlebar display until the display illuminates.
- To Power Off: Press and hold the power button until the display turns off.
5.2 Riding Modes
The KQi Air may feature different riding modes (e.g., Eco, Sport) accessible via the display or the NIU Smart App. Refer to the app for specific mode details and how to switch between them.
5.3 Acceleration and Braking
- Acceleration: Gently twist the throttle on the right handlebar to accelerate. Start with a gentle push-off with your foot for smoother acceleration.
- Braking: Use the brake levers on the handlebars. The scooter is equipped with dual brakes (front disc brake and rear EBS regenerative braking) for effective stopping. Apply both brakes simultaneously for maximum stopping power.
5.4 Lights, Horn, and Turn Signals
- Headlight/Taillight: Typically activated by a button on the display or automatically in low light. Double-tap the power button to toggle the headlamp.
- Horn: Press the horn button on the handlebar to activate the electric horn.
- Turn Signals: Use the dedicated buttons on the handlebar to activate left or right turn signals.
6. Maintenance
Regular maintenance ensures the longevity and safe operation of your NIU KQi Air scooter.
6.1 Battery Care
- Charge the battery fully after each use, especially if storing for an extended period.
- Avoid completely draining the battery before recharging.
- Store the scooter in a cool, dry place, away from direct sunlight and extreme temperatures.
6.2 Tire Maintenance
The 9.5-inch tubeless pneumatic tires require proper inflation for optimal performance and safety.
- Check tire pressure regularly (refer to the tire sidewall for recommended PSI).
- Inspect tires for wear, punctures, or damage before each ride.
- Consider using a tire sealant for added puncture protection.
6.3 Brake System Inspection
- Regularly check the responsiveness of both disc and regenerative brakes.
- Inspect brake pads for wear and replace if necessary.
- Ensure brake cables (for disc brake) are not frayed or loose.
6.4 Cleaning and Storage
- Clean the scooter with a damp cloth. Avoid using high-pressure water jets or harsh chemicals.
- Do not hose down the scooter directly.
- When storing, ensure the scooter is clean and dry. The folding mechanism allows for compact storage.
Figure 6.1: The NIU KQi Air's foldable design allows for convenient transport and storage.
7. Troubleshooting
This section addresses common issues you might encounter with your NIU KQi Air scooter. For more complex problems, consult the NIU Smart App or contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Scooter does not power on. | Low battery; loose electrical connection; power button malfunction. | Charge the battery fully. Check all visible cable connections. Contact support if issue persists. |
| Reduced braking power after full charge. | Regenerative braking may be less effective when battery is at 100%. | This is normal. Rely more on the mechanical disc brake until battery drains slightly. |
| Bluetooth connection issues with app. | App glitch; scooter not in pairing mode; interference. | Restart the scooter and the app. Ensure Bluetooth is enabled on your phone. Try pairing again. |
| Unusual noises during operation. | Loose components; debris in wheels; motor issue. | Inspect all visible parts for looseness. Check wheels for obstructions. If noise persists, seek professional inspection. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | NIU KQi Air |
| Frame Material | Carbon Fiber (Pyrofil TR50S15L) |
| Item Weight | 26.2 Pounds (11.9 kg) |
| Max Speed | 20 MPH (32 km/h) |
| Max Distance Range | 31 Miles (50 km) |
| Motor Power | 700W Max Power |
| Battery Type | 48V Lithium-ion (21700 LG cells) |
| Charging Time | Approx. 5 Hours |
| Wheel Size | 9.5 Inches |
| Wheel Type | Tubeless Pneumatic |
| Brake Style | Dual Brake (Disc Front) + Regenerative braking (Rear) |
| Weight Limit | 265 Pounds (120 kg) |
| Product Dimensions (LxWxH) | 44.8"L x 21.3"W x 46.7"H |
| UL Certification | UL 2722 Certified |
9. Warranty and Support
NIU stands by the quality of its products. The NIU KQi Air Electric Scooter comes with a 2-year limited warranty.
For detailed information regarding warranty terms, coverage for accessories and consumable parts, and local after-sales service, please refer to the updated warranty and user manual available on the product page or the official NIU website. For direct support, you can typically find contact information within the NIU Smart App or on the NIU brand's official support channels.
No official product videos from the seller were found for embedding in this manual.
