Introduction
Thank you for purchasing the GoolRC WLtoys WL918 RC Boat. This high-speed remote control racing boat is designed for thrilling water adventures. Please read this manual carefully before operating the boat to ensure safe and optimal performance. This manual provides essential information on setup, operation, maintenance, and troubleshooting.
Key Features:
- 2.4GHz Remote Control: Advanced technology for anti-interference, allowing multiple boats to race simultaneously.
- High Speed Performance: Achieves speeds up to 35KM/H with full proportional control for precise movement and steering.
- Self-Righting Function: Automatically flips upright if the boat capsizes, ensuring continuous play.
- LED Lights: Bright illumination for enhanced visibility and exciting nighttime operation.
- Safety Alarms: Features a low-voltage alarm and out-of-range return alarm to inform you of the boat's status.
- Water Cooling System: Integrated system for efficient heat dissipation, prolonging motor life and ensuring stable performance.
- Crash Protected Shield: An anti-collision cover designed to alleviate impact and protect the hull from damage.
Setup Guide
1. Unboxing and Inspection
Carefully remove all components from the packaging. Inspect the boat and remote control for any signs of damage. Ensure all accessories are present.

Image: The GoolRC WLtoys WL918 RC Boat, its remote control, battery, charger, and display stand, as packaged.
2. Battery Installation and Charging
- Boat Battery: Open the battery compartment on the boat. Connect the 7.4V 3000mAh 10C battery to the boat's power connector. Securely place the battery inside the compartment and close the cover.
- Remote Control Batteries: Insert the required batteries (not included) into the remote control's battery compartment, ensuring correct polarity.
- Charging: Use the provided charger to fully charge the boat's battery before first use. Charging time is approximately 6.5 hours. Do not overcharge the battery.
3. Remote Control Pairing
Turn on the remote control, then turn on the boat. The remote control and boat should automatically pair. If pairing fails, turn both off and repeat the process. Ensure the boat is placed on a stable surface or in water for proper sensor initialization.
Operating Instructions
1. Pre-Operation Checklist
- Ensure the boat battery is fully charged.
- Verify remote control batteries are installed.
- Confirm the boat and remote are successfully paired.
- Choose a suitable operating area (lake or river) free from obstacles and strong currents.
2. Basic Controls
The remote control provides full proportional control:
- Throttle Trigger: Pull to move forward, push to move backward.
- Steering Wheel: Turn left to steer left, turn right to steer right.
- Trim Adjustments: Use the ST-TRIM and TH-TRIM knobs to fine-tune steering and throttle for straight running.

Image: The GoolRC WLtoys WL918 RC Boat in action, demonstrating its speed and LED lights.
3. Self-Righting Function
If the boat capsizes during operation, press the designated function key on the remote control. The boat will automatically flip back upright, allowing you to continue playing without manual intervention.

Image: Illustration of the boat's auto-flip function, activated via the transmitter to right a capsized boat.
4. Low Battery Reminder
When the boat's battery power is low, the remote control will emit a beeping alarm sound. Simultaneously, the boat's speed will decrease rapidly. This indicates that the battery is nearly depleted, and you should return the boat to shore as soon as possible to avoid losing control.

Image: The RC boat on water, accompanied by a visual representation of a low battery indicator.
5. Out-of-Range Alarm
The remote control will also alert you if the boat goes beyond its effective control range (approximately 200 meters). If this alarm sounds, immediately steer the boat back towards you to regain full control.
6. Night Operation with LED Lights
The integrated LED lights allow for operation in low-light conditions or at night, providing a visually appealing experience on the water.

Image: The GoolRC WLtoys WL918 RC Boat with its bright LED lights illuminated for night use.
7. Demonstration Video
Video: A demonstration of the GoolRC WLtoys WL918 RC Boat in operation, showcasing its speed, self-righting capability, and maneuverability on water.
Maintenance
1. After Each Use
- Clean the Boat: Rinse the boat with fresh water to remove any salt, dirt, or debris. Dry thoroughly with a soft cloth.
- Remove Batteries: Always remove the boat battery and remote control batteries when not in use to prevent leakage and damage.
- Inspect Propeller and Rudder: Check for any tangled debris (e.g., weeds, fishing line) and remove them carefully. Ensure the propeller and rudder move freely.
2. Water Cooling System
The boat features a water cooling system. After each use, ensure the water intake and outlet are clear of obstructions. Regular cleaning helps maintain optimal motor temperature and extends the boat's lifespan.

Image: The RC boat highlighting its water cooling system, crucial for maintaining motor performance.
3. Storage
Store the boat in a cool, dry place away from direct sunlight and extreme temperatures. Use the provided display stand to prevent hull deformation.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Boat does not respond to remote control. | Low battery in boat or remote; not paired; out of range. | Charge boat battery, replace remote batteries, re-pair, bring boat closer. |
| Boat runs slowly or inconsistently. | Low boat battery; propeller obstructed; motor overheating. | Charge boat battery, clear propeller, check water cooling system. |
| Boat capsizes frequently. | Rough water conditions; improper steering. | Operate in calmer water, practice smoother turns, use self-righting function. |
| Remote control beeps continuously. | Low boat battery; boat out of range. | Return boat to shore for charging; bring boat closer to remote. |
Specifications
| Feature | Detail |
|---|---|
| Model | WL918 |
| Brand | GoolRC |
| Max Speed | 35 KM/H |
| Motor | 550 Carbon Brush |
| Battery | 7.4V 3000mAh 10C |
| Remote Control Frequency | 2.4GHz |
| Remote Control Distance | Approx. 200 meters |
| Use Time | Approx. 15-17 minutes |
| Charging Time | Approx. 6.5 hours |
| Dimensions (L x W x H) | 46.9 x 11.7 x 13 cm (18.46 x 4.61 x 5.12 inches) |
| Material | Plastic |
| Recommended Age | Adult (14+ years) |

Image: An overview of the GoolRC WLtoys WL918 RC Boat's key specifications and physical dimensions.
Warranty Information
GoolRC products are manufactured to high-quality standards. For specific warranty details, including coverage period and terms, please refer to the warranty card included with your product or contact the seller directly. Keep your purchase receipt as proof of purchase for any warranty claims.
Customer Support
If you encounter any issues or have questions regarding your GoolRC WLtoys WL918 RC Boat that are not covered in this manual, please contact our customer support team or the seller from whom you purchased the product. Provide your model number (WL918) and a detailed description of the issue for faster assistance.