1. Introduction
Welcome to the iScooter EB3S Electric Bike user manual. This guide provides essential information for the safe assembly, operation, maintenance, and troubleshooting of your new electric mountain bike. Please read this manual thoroughly before your first ride to ensure optimal performance and safety.
The iScooter EB3S is an E-Mountain Bike designed for adults, featuring a powerful 350W motor, a long-lasting 36V 15AH battery, and robust 26-inch all-terrain tires. It offers a maximum speed of 35 KM/H and a range of 70-90 KM, making it suitable for various terrains and daily commutes.
2. Safety Information
Disclaimer: Please be aware of potential fire risks and strictly adhere to the instruction manual for charging and storage procedures. Always wear appropriate protective equipment and fully comply with all applicable local laws and regulations while using the product.
- Always wear a helmet and other protective gear (knee pads, elbow pads) when riding.
- Ensure all components are securely fastened before each ride.
- Do not ride under the influence of alcohol or drugs.
- Be aware of your surroundings and ride defensively.
- Avoid riding in heavy rain or extreme weather conditions.
- Familiarize yourself with local traffic laws and regulations for electric bikes.
3. Package Contents & Assembly
Upon unpacking, please verify that all items listed below are present and undamaged. For detailed assembly instructions, refer to the comprehensive user manual PDF.

3.1. Included Accessories:
- Front wheel x1
- Quick release x1
- Saddle x1
- Left pedal x1
- Right pedal x1
- Double fork wrench x5
- Battery wrench x2
- Pump x1
- Charger x1
- User manual (PDF) x1
3.2. Initial Setup Steps:
- Unpacking: Carefully remove all components from the packaging.
- Handlebar Installation: Attach the handlebar to the stem, ensuring it is centered and tightened securely.
- Front Wheel Installation: Install the front wheel using the quick release mechanism. Ensure the wheel is properly seated and the quick release lever is fully closed and secured.
- Pedal Installation: Attach the left and right pedals to their respective cranks. Note that pedals are typically marked 'L' for left and 'R' for right.
- Saddle Adjustment: Insert the saddle post into the frame and adjust the height to your comfort. Secure it with the quick release or bolt.
- Battery Installation: Ensure the battery is correctly inserted and locked into its compartment.
- Tire Inflation: Use the provided pump to inflate the tires to the recommended pressure (refer to the tire sidewall for specifications).
4. Operating Instructions
4.1. Powering On/Off
- To Power On: Press and hold the power button on the display unit until the screen illuminates.
- To Power Off: Press and hold the power button again until the display turns off.
4.2. Smart LCD Display Screen
The EB3S features a Smart LCD Display Screen that provides real-time information about your ride.

Key indicators include:
- Current Speed: Displays speed in MPH/KMH.
- Battery Level: Shows remaining battery charge.
- Assist Level: Indicates the current pedal assist level.
- Braking Applied: Illuminates when brakes are engaged.
- Controller Assist Indicator Bar: Visual representation of motor assistance.
- Walk Assist Mode: Engages low-speed assistance for walking alongside the bike.
- ODO: Odometer (total distance traveled).
- TRIP: Trip distance.
- CUR: Current.
- RM: Remaining mileage.
- T1: Single run time.
- VOL: Battery voltage.
- Cruise Control: Feature for maintaining a constant speed.
4.3. Driving Modes & Speed Control
The iScooter EB3S offers five distinct speed modes, providing a versatile riding experience. The maximum speed can be lifted to 35 KM/H.

| Mode | Initial Speed |
|---|---|
| Mode 1 | 6 km/h |
| Mode 2 | 10 km/h |
| Mode 3 | 15 km/h |
| Mode 4 | 20 km/h |
| Mode 5 | 25 km/h |
Note: Speed limit can be lifted to a maximum of 35 km/h.
4.4. Braking System
The EB3S is equipped with reliable front and rear cable-operated disc brakes for effective stopping power.

Always test your brakes before riding. Ensure brake levers are easily accessible and provide firm, responsive braking.
4.5. Lighting System
For safe travel at night, the EB3S includes bright LED front and rear lights.

Turn on lights when riding in low-light conditions or at night to enhance visibility.
4.6. App Connection (Volttix)
The iScooter EB3S is compatible with the Volttix app, allowing you to monitor and control various settings from your smartphone.

Video 4.1: Demonstrates connecting the e-bike to the Volttix app, adjusting settings like speed limits and gears, and locking/unlocking the vehicle.
To connect:
- Download the Volttix app from your smartphone's app store.
- Ensure your bike is powered on and Bluetooth is enabled on your phone.
- Open the Volttix app and follow the on-screen instructions to search for and connect to your EB3S.
- The app allows you to view detailed information, adjust speed limits, change gear settings, and lock/unlock the bike.
5. Maintenance
5.1. Battery Care
- Charge the battery fully before first use.
- Charge the battery regularly, even if the bike is not used for extended periods (at least once a month).
- Do not overcharge or completely drain the battery.
- Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures.
- If the battery is damaged, do not attempt to repair it. Contact customer support.
5.2. Tire Maintenance

- Regularly check tire pressure and inflate to the recommended PSI/Bar indicated on the tire sidewall.
- Inspect tires for wear, punctures, or damage before each ride.
- Replace worn or damaged tires promptly.
5.3. Brake Maintenance
- Regularly check brake pads for wear and replace them when necessary.
- Ensure brake cables are free from fraying and properly tensioned.
- Test brake responsiveness before each ride.
5.4. General Cleaning
- Clean the bike regularly with a damp cloth. Avoid using high-pressure water jets directly on electrical components.
- Lubricate the chain periodically to ensure smooth operation and prevent rust.
- Inspect all bolts and fasteners for tightness before each ride.
6. Troubleshooting
This section covers common issues you might encounter with your iScooter EB3S. For more complex problems, please consult the full user manual PDF or contact customer support.
- Bike not powering on: Check battery charge, ensure battery is properly seated, and connections are secure.
- Motor not assisting: Verify pedal assist level on the display, check for error codes, ensure brake levers are not partially engaged.
- Reduced range: May be due to low tire pressure, riding in high assist modes, heavy loads, or cold weather.
- Brakes squealing: May indicate worn pads, contamination, or improper adjustment. Clean or replace pads as needed.
7. Specifications
Detailed technical specifications for the iScooter EB3S Electric Bike.

| Feature | Specification |
|---|---|
| Model Number | EB3S |
| Brand Name | iScooter |
| Motor | 350W Brushless |
| Battery | 36V 15AH Lithium battery |
| Charging Time | 5-6 Hours |
| Max Speed | 35 KM/H (<25km/h certified) |
| Range | 70-90 KM |
| Wheel Size | 26 inches |
| Tires | 26x1.95 inch All-Terrain |
| Frame Material | Aluminum alloy |
| Brakes | Front and rear disc brakes |
| Waterproof Rating | IPX4 |
| Rated Passenger Capacity | One Seat |
| Max Load | 120 KG |
| Bluetooth | YES |
| Transmission | 5-speed |
| Folded | No |
| Certification | CE |

- Length: 172 cm
- Height: 97 cm
- Handlebar Width: 68.5 cm
- Product Weight: 24.6 KG
- Recommended Age: 18 Years And Above
8. User Tips
- Pre-Ride Check: Always perform a quick check of tire pressure, brake function, and battery level before each ride.
- App Customization: Utilize the Volttix app to fine-tune speed settings and riding modes to match your preference and local regulations.
- Battery Longevity: For optimal battery life, avoid storing the bike in extreme hot or cold conditions. Charge the battery to about 60-80% if storing for long periods.
- Visibility: Even during the day, consider using your LED lights for increased visibility to others, especially in shaded areas or adverse weather.
- Gear Shifting: Shift gears smoothly and avoid abrupt changes, especially under heavy load, to prolong the life of your drivetrain.
9. Warranty & Support
For detailed warranty information, return policies, and customer support, please refer to the official user manual PDF provided with your product or visit the manufacturer's website.
A comprehensive user manual in PDF format is available for download and reference: iScooter EB3S User Manual (PDF). This document contains detailed diagrams, assembly instructions, and further troubleshooting steps.