1. Safety Information
Before operating your DEEPOWER S20 Electric Bike, please read and understand all safety instructions. Failure to follow these instructions may result in serious injury or damage to the product.
General Safety Guidelines
- Always wear a helmet and appropriate safety gear when riding.
- Obey all local traffic laws and regulations.
- Perform a pre-ride inspection before each use, checking brakes, tires, battery, and lights.
- Do not ride under the influence of alcohol or drugs.
- Be aware of your surroundings and ride defensively.
Battery Safety
- The integrated Battery Management System (BMS) protects the battery from overcharging and overheating.
- The battery is IPX4 water-resistant, suitable for light rain, but avoid submerging it in water.
- Only use the charger provided by DEEPOWER.
- Do not puncture, open, or disassemble the battery pack.
Braking and Visibility
- The S20 is equipped with mechanical disc brakes for reliable stopping power. Regularly check brake pads and cables for wear.
- Utilize the high-brightness headlight and signal taillight to enhance visibility, especially during low-light conditions or at night.
2. Product Overview
The DEEPOWER S20 Electric Bike is designed for versatile riding across various terrains, featuring a powerful motor, long-range battery, and a robust suspension system.

The DEEPOWER S20 Electric Bike, showcasing its robust frame and fat tires.
Key Features
- Powerful Motor: Equipped with a 1500W brushless hub motor, providing strong acceleration and climbing capability for slopes up to 30°. Top speed can reach 28+ MPH.
- Long-Range Battery: Features a detachable 48V lithium battery (available in 13Ah, 20Ah, or 25Ah options) for extended rides. The 13Ah battery offers up to 25 miles in pure electric mode and 35+ miles with pedal assist.
- Advanced Suspension: Includes a rear hydraulic shock absorber and front fork suspension for a stable and comfortable ride on diverse terrains.
- Intuitive LCD Display: An easy-to-read LCD display provides real-time information on speed, distance, and battery level.
- All-Terrain Fat Tires: 20-inch by 4-inch fat tires provide enhanced grip and stability on snow, city roads, sand, and mud.
- Reliable Braking System: Mechanical disc brakes ensure effective stopping power.
- Integrated Lighting: High-brightness headlight, signal taillight, and turn signals improve visibility and safety.
- 7-Speed Gear System: A professional 7-speed transmission allows for smooth adaptation to various riding conditions.

Illustration of the 1500W peak motor, highlighting its power and 7-speed gear integration.

Detailed view of the 48V 13AH removable battery, showing its capacity and charging time.

The advanced LCD display showing speed and battery level, along with controls for lighting, speed, and the 7-speed shifter.

The 20-inch by 4-inch fat tires, suitable for various terrains including snow, city roads, sand, and mud.

The DEEPOWER S20 Electric Bike with a visual representation of the optional 48V 13Ah, 20Ah, and 25Ah battery capacities.
3. Setup and Assembly
The DEEPOWER S20 Electric Bike arrives 90% pre-assembled to simplify the setup process. The remaining assembly typically takes 15-30 minutes.
Included Components for Assembly
- Main bike frame (partially assembled)
- Front wheel
- Handlebar
- Pedals
- Front fender
- Tool Kit

Visual representation of the DEEPOWER S20 Electric Bike's main components for assembly, illustrating its 90% pre-installed status.
Assembly Steps (General)
- Carefully remove all components from the packaging.
- Attach the front wheel to the front fork. Ensure it is securely fastened.
- Install the handlebar, adjusting its position for comfortable riding.
- Screw the pedals into the crank arms. Note that pedals are typically marked 'L' for left and 'R' for right.
- Attach the front fender.
- Insert the battery into its compartment and lock it securely with the provided key.
- Perform a thorough check of all bolts, nuts, and quick releases to ensure they are tightened correctly.
For detailed, step-by-step instructions, refer to the full user manual available via the support section or official channels. Video guides may also be available.
4. Operating Instructions
The DEEPOWER S20 offers multiple riding modes and a 7-speed gear system to adapt to your preferences and terrain.
Riding Modes

Illustration of the three riding modes: Manual, Electric, and Pedal Assist.
- Manual Mode: Ride the bike like a traditional bicycle, using pedal power only.
- Pedal Assist Mode (PAS): The motor provides assistance as you pedal, making riding easier, especially on inclines or for longer distances. The level of assistance can typically be adjusted via the LCD display.
- Full Electric Mode: Use the twist throttle to engage the motor without pedaling, similar to a motorcycle.
7-Speed Gear System
The professional 7-speed gear system allows you to select the appropriate gear for different speeds and terrains. Use the shifter on the handlebar to change gears smoothly. Lower gears are suitable for climbing hills, while higher gears are for faster speeds on flat surfaces.

Close-up of the 7-speed gear system, headlight, turn signals, and taillight.
LCD Display Usage
The LCD display provides essential riding information:
- Speed: Current riding speed.
- Distance: Trip distance and total odometer.
- Battery Level: Indicates remaining battery charge.
- PAS Level: Shows the current level of pedal assistance.
Consult the full manual for detailed instructions on navigating the display menus and adjusting settings.
Battery Charging
To charge the battery:
- Ensure the bike is turned off.
- Connect the charger to the battery charging port.
- Plug the charger into a standard power outlet.
- Charging typically takes 5-6 hours for a full charge. The charger indicator light will change when charging is complete.
5. Maintenance
Regular maintenance ensures the longevity and safe operation of your DEEPOWER S20 Electric Bike.
Routine Checks
- Tires: Check tire pressure before each ride. Refer to the tire sidewall for recommended pressure. Inspect for wear or damage.
- Brakes: Test brakes before each ride. Ensure brake levers are firm and responsive. Check brake pads for wear and replace if necessary.
- Chain: Keep the chain clean and lubricated to ensure smooth gear changes and prevent wear.
- Fasteners: Periodically check all bolts, nuts, and quick releases for tightness.
- Battery: Store the battery in a cool, dry place and charge it regularly, even if not in use, to maintain its health. Avoid fully discharging the battery.
Cleaning
Clean your e-bike with a damp cloth and mild soap. Avoid using high-pressure washers directly on electrical components, bearings, or the motor.
6. Troubleshooting
This section provides general guidance for common issues. For more complex problems, please contact customer support.
Common Issues and Solutions
- Bike not turning on: Check if the battery is properly inserted and locked, and if it has sufficient charge. Ensure all electrical connections are secure.
- Motor not assisting: Verify that Pedal Assist Mode (PAS) is activated on the display. Check if the brake levers are fully released, as some systems cut motor power when brakes are applied.
- Brakes feel weak: Inspect brake pads for wear. Adjust brake cable tension if necessary. Ensure brake calipers are clean and free of debris.
- Unusual noises: Identify the source of the noise. It could be loose components, a dry chain, or issues with the motor or wheels. Address loose parts, lubricate the chain, or contact support if the noise persists.
7. Specifications

Detailed dimensions, bicycle weight, load capacity, and recommended height for the DEEPOWER S20 Electric Bike.
| Feature | Specification |
|---|---|
| Bike Type | Electric Bike |
| Age Range | Adult |
| Brand | DEEPOWER |
| Motor | 1500W Peak Brushless Hub Motor |
| Battery | 48V 13Ah/20Ah/25Ah Removable Lithium Battery |
| Top Speed | 28+ MPH |
| Max Slope | 30° |
| Range (Pure Electric) | Up to 25 miles (13Ah battery) |
| Range (Pedal Assist) | Up to 35+ miles (13Ah battery) |
| Charging Time | 5-6 Hours |
| Number of Speeds | 7 |
| Wheel Size | 20 Inches |
| Tire Type | 20" x 4" Fat Tires |
| Frame Material | Carbon Steel |
| Suspension Type | Dual (Front Fork & Rear Hydraulic Shock Absorber) |
| Brake Style | Mechanical Disc |
| Special Features | LCD Display, Waterproof (IPX4), Headlight, Taillight, Turn Signals |
| Item Weight | 40 Kilograms (approx. 88 lbs) |
| Load Capacity | 330 lbs |
| Recommended Height | 4'7" - 5'5" |
8. Warranty and Support
DEEPOWER is committed to providing reliable support for your S20 Electric Bike.
Warranty Assurance
Your DEEPOWER S20 Electric Bike comes with a 1-year warranty, covering manufacturing defects and ensuring peace of mind with your purchase.
Customer Support
For any questions, technical assistance, or warranty claims, please contact our customer service team. We aim to respond to all inquiries within 24 business hours.
- Direct Email Support: Deepowery@outlook.com
- Customer Care Hours: Monday - Friday, 9:00 am - 6:00 pm (EST)

Information on warranty, email support, and customer care hours.
Full User Manual
For a comprehensive guide and detailed instructions, you can download the full DEEPOWER S20 user manual:
Download S20 User Manual (PDF)

QR codes for accessing the S20 manual and direct email support.





