1. Product Overview
The WLtoys WL918 and WL911-A are high-performance remote control speedboats designed for exciting water racing. These models feature advanced propulsion systems, water cooling, and intelligent functions like capsize recovery and low voltage alerts, providing an engaging experience for both adults and children.
Key Features:
- High-speed performance (up to 35KM/H for WL918, 21KM/H for WL911-A).
- Powerful motors (550 carbon brush for WL918, 370 strong magnetic for WL911-A).
- Efficient water cooling system for extended motor life.
- 2.4Ghz remote control for stable and long-range operation.
- Capsize recovery / automatic righting function.
- Low voltage feedback/reminder for safe operation.
- Waterproof design to protect internal components.
- Aerodynamic hull design for reduced drag.
2. Safety Information
- WARNING: Not suitable for children under 36 months due to small parts.
- Always operate the RC boat in open water, away from people, animals, and obstacles.
- Do not operate in saltwater or heavily chlorinated water.
- Ensure the battery is fully charged before each use.
- Never touch the propeller when the boat is powered on.
- Keep hands and loose clothing away from moving parts.
- Adult supervision is recommended for younger users.
- Do not attempt to modify the boat or its components.
3. Package Contents
Upon opening the package, please verify that all items are present and in good condition.
WL918 Package Contents:
Image: WL918 RC Boat, remote control, battery, charger, boat stand, and tools.
- Color box packaging
- WL918 RC Boat
- Boat rack
- Remote control
- Instruction manual
- USB charger
- 7.4V 3000mAh Lithium battery
- Hexagonal socket
- Propeller
WL911-A Package Contents:
Image: WL911-A RC Boat, remote control, 800mAh battery, charging cable, and original box.
- Color box packaging
- WL911-A RC Boat
- Boat rack
- Remote control
- Instruction manual
- USB charger
- 7.4V 800mAh Lithium battery
- Hexagonal socket
- Propeller
4. Setup Guide
4.1 Charging the Boat Battery
- Connect the boat's lithium battery to the provided USB charger.
- Plug the USB charger into a suitable USB power source (e.g., computer USB port, USB wall adapter).
- Charging Indicator:
- For WL918: The red light on the charger will be ON during charging. The green light will turn ON when fully charged.
- For WL911-A: The red light on the charger will be ON during charging. The red light will turn OFF when fully charged.
- Charging Time:
- WL918: Approximately 6.5 hours.
- WL911-A: Approximately 120 minutes (2 hours).
- Disconnect the battery once fully charged.
4.2 Installing Remote Control Batteries
- Open the battery compartment on the back of the remote control.
- Insert 4 x 1.5V AA batteries (not included), ensuring correct polarity.
- Close the battery compartment securely.
4.3 Installing Boat Battery
- Carefully open the waterproof cover of the RC boat.
- Connect the fully charged lithium battery to the boat's power connector.
- Place the battery securely within the compartment.
- Ensure the waterproof cover is properly sealed to prevent water ingress.
Image: Internal view of the WL911-A boat showing the waterproof cover and battery placement.
5. Operating Instructions
5.1 Remote Control Functions
Image: Labeled diagram of the 2.4Ghz remote control.
- Power Switch: Turns the remote control ON/OFF.
- Power Indicator: Shows the power status.
- Rudder Adjustment Knob: Fine-tunes rudder position.
- Direction Knob: Controls left and right steering.
- Throttle Trigger: Controls forward and backward movement.
- Directional Left Trim: Adjusts left steering trim.
- Directional Right Trim: Adjusts right steering trim.
The 2.4Ghz high-frequency wireless system provides a control distance of approximately 100 meters (WL911-A) to 200 meters (WL918).
5.2 Starting the Boat
- Place the boat gently into the water.
- Turn on the boat's power switch (usually located inside the waterproof compartment or on the deck).
- Turn on the remote control power switch.
- The boat and remote control should automatically pair. If not, refer to the troubleshooting section.
5.3 Driving the Boat
- Use the Throttle Trigger (5) to control speed: pull back for forward, push forward for reverse.
- Use the Direction Knob (4) to steer: turn left for left, turn right for right.
- Adjust the Rudder Adjustment Knob (3) and Directional Trims (6, 7) if the boat does not track straight.
5.4 Special Functions
Water Cooling System
Both models feature a water cooling system to dissipate heat from the motor, ensuring stable performance and extending the product's lifespan. Water is drawn in through an intake and expelled, cooling the motor during operation.
Image: WL911-A boat demonstrating the water cooling system.
Image: WL918 boat demonstrating the water cooling system.
Capsize Recovery / Self-Righting Function
If the speedboat capsizes in the water, a quick pull of the front and rear trigger on the remote control can make the speedboat automatically turn back to its upright position. This feature helps to easily resolve issues of the boat flipping over during navigation.
Image: WL911-A boat demonstrating the self-righting function.
Low Voltage Feedback / Reminder
The boat is equipped with a low voltage feedback function that sends an alarm signal to the remote control when the boat's battery is running low. This allows you to safely return the boat to shore before the battery is completely depleted.
6. Maintenance
- After Use: Always remove the boat from the water, open the waterproof cover, and disconnect the battery.
- Cleaning: Wipe down the boat with a soft, dry cloth. If necessary, use a slightly damp cloth, but ensure all components are completely dry before storage.
- Propeller: Regularly check the propeller for any debris (weeds, fishing line) and remove it carefully. Inspect for damage.
- Water Cooling System: Ensure the water intake and outlet are clear of obstructions.
- Battery Care:
- Store batteries in a cool, dry place, away from direct sunlight and extreme temperatures.
- Do not overcharge or over-discharge batteries.
- If storing for extended periods, charge batteries to approximately 50% capacity.
- Storage: Store the boat and remote control in a dry, safe place, away from dust and moisture. Use the provided boat rack for display and drying.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Boat does not respond to remote control. |
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| Boat is slow or lacks power. |
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| Boat capsizes. |
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| Water inside the boat. |
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8. Specifications
Image: Detailed comparison of WL918 and WL911-A specifications.
| Feature | WL918 Speedboat | WL911-A RC Boat |
|---|---|---|
| Item Name | WL918 | WL911-A |
| Size (L*W*H) | 46.9 * 11.7 * 13 CM | 35 * 8.8 * 7 CM |
| Maximum Speed | 35 KM/H | 21 KM/H |
| Battery | 7.4V 3000mAh 10C | 7.4V 800mAh |
| Use Time | About 15-17 minutes | About 7-8 minutes |
| Driving Motor | 550 carbon brush motor | 370 strong magneto motor |
| Anti-rollover Function | Yes | Yes |
| Remote Control Frequency | 2.4Ghz | 2.4Ghz |
| Control Distance | About 200 meters | About 100 meters |
| Charging Time | About 6.5 hours | About 120 minutes |
| Material | ABS Plastic | ABS Plastic |
| Recommended Age | 14+ years | 14+ years |
9. Warranty and Support
This product comes with a one-month product warranty service from the date of receipt. If you encounter any questions or issues after receiving your package, please contact the seller directly through AliExpress.
Please avoid leaving negative feedback immediately. Communication with the seller is the most effective way to resolve any problems you may experience.
Disclaimer:
⚠️ Not suitable for children under 36 months.
