1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your ACAMMZAR S815 1:24 scale 4WD RC Drift Car. Please read this manual thoroughly before first use to ensure proper setup and to maximize your experience with the product.
2. Package Contents
Verify that all items listed below are included in your package:
- 1 x ACAMMZAR S815 RC Drift Car
- 2 x 3.7V 500mAh Rechargeable Batteries (one pre-installed in car, one spare)
- 1 x Remote Control Transmitter
- 1 x USB Charging Cable
- 4 x Extra Drifting Tires
- 1 x Screwdriver
- 1 x Instruction Manual

Image: ACAMMZAR S815 RC Drift Car with remote control, two sets of tires (racing and drifting), traffic cones, and two rechargeable batteries.
3. Specifications
| Feature | Detail |
|---|---|
| Model Number | S815 |
| Scale | 1:24 |
| Drive System | 4-Wheel Drive (4WD) |
| Maximum Speed | Up to 20 KM/H |
| Remote Control Distance | Up to 50 meters |
| Car Battery | 2 x 3.7V 500mAh Li-ion (included) |
| Remote Control Battery | AA batteries (not included) |
| Run Time | Approximately 50 minutes total (with two batteries) |
| Lighting | LED Headlights and Taillights |
| Dimensions | 8.98 x 8.98 x 3.31 inches |
| Item Weight | 1.12 pounds |
| Recommended Age | 8 years and up |
4. Safety Information
- Always operate the RC car in open areas, away from people, pets, and obstacles.
- Do not operate near roads, water, or in adverse weather conditions.
- Keep fingers, hair, and loose clothing away from moving parts.
- Adult supervision is recommended for children.
- Do not modify the product, as this may cause malfunction or injury.
- Ensure batteries are charged correctly and handled safely.
5. Setup
5.1. Battery Installation
Car Battery:
- Locate the battery compartment on the underside of the RC car.
- Use the included screwdriver to open the battery compartment cover.
- Connect the 3.7V 500mAh battery to the car's power connector.
- Place the battery inside the compartment and secure the cover with the screw.
Remote Control Battery:
- Open the battery compartment on the back of the remote control.
- Insert 2 AA batteries (not included) according to the polarity markings.
- Close the battery compartment cover.
5.2. Charging the Car Battery
- Connect the 3.7V 500mAh battery to the USB charging cable.
- Plug the USB charging cable into a standard USB power adapter (e.g., computer USB port, wall charger).
- The indicator light on the USB cable will show charging status (refer to charger instructions for specific light behavior).
- Once fully charged, disconnect the battery from the charger.
5.3. Pairing the Remote Control
- Ensure the car's battery is installed and the car's power switch is in the "OFF" position.
- Turn on the remote control transmitter. The power indicator light on the remote will blink.
- Turn on the power switch on the RC car.
- The remote control's indicator light will stop blinking and remain solid once successfully paired.

Image: Remote control diagram illustrating the functions of the light switch, speed switching button, power indicator, power switch, steering wheel, and forward/backward trigger.
5.4. Changing Tires
Your RC car comes with two types of tires: racing tires for grip and drifting tires for sliding. Use the included screwdriver to change them.
- Use the screwdriver to remove the wheel nuts from the current tires.
- Carefully remove the existing tires from the axles.
- Place the desired set of tires onto the axles.
- Secure the new tires with the wheel nuts using the screwdriver.

Image: Comparison of Race Tires and Drift Tires, demonstrating their distinct designs for different driving styles.
6. Operation
6.1. Basic Controls
- Forward/Backward: Use the trigger on the remote control. Pull to move forward, push to move backward.
- Steering: Use the steering wheel on the remote control. Turn left to steer left, turn right to steer right.
6.2. Speed Adjustment
The remote control features a speed switching button. Press this button to toggle between high and low-speed modes. This allows for easier control for beginners or more dynamic driving for experienced users.
6.3. LED Lights
The RC car is equipped with functional LED headlights and taillights. Use the light switch button on the remote control to turn the lights on or off. This feature enhances visibility and aesthetic appeal, especially during low-light operation.

Image: The RC car displaying its illuminated front headlights and rear taillights.
6.4. Drifting
The 4WD system and proportional throttle allow for precise control, enabling various drifting stunts. Practice in an open area with the drifting tires installed to master techniques such as tail flipping and spinning. The included barricade accessories can be used for practice courses.

Image: The RC car demonstrating its capabilities, emphasizing its 4WD system for enhanced drifting performance.

Image: An internal diagram of the RC car, illustrating the 4WD system and independent front shock absorbers designed for smoother drifting.
7. Maintenance
7.1. Cleaning
- After each use, gently wipe the car body with a soft, dry cloth to remove dust and debris.
- Avoid using water or chemical cleaners, as they may damage electronic components.
- Periodically check wheels and axles for tangled hair or fibers and remove them carefully.
7.2. Battery Care
- Always disconnect the battery from the car when not in use.
- Do not overcharge or completely discharge the batteries.
- Store batteries in a cool, dry place, away from direct sunlight and extreme temperatures.
- If the car will not be used for an extended period, remove all batteries from both the car and the remote control.
7.3. Storage
Store the RC car and its accessories in a dry environment, away from direct sunlight and moisture. Keep the original packaging for safe storage and transport.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Car does not respond to remote control. | 1. Batteries are low or depleted. 2. Remote control and car are not paired. 3. Power switches are off. | 1. Charge car battery; replace remote control batteries. 2. Follow pairing instructions in Section 5.3. 3. Ensure both car and remote control power switches are ON. |
| Car moves slowly or inconsistently. | 1. Car battery is low. 2. Obstruction in wheels/axles. | 1. Recharge the car battery. 2. Check and clear any obstructions from the wheels and axles. |
| LED lights are not working. | 1. Light switch is off. 2. Battery is low. | 1. Press the light switch button on the remote control. 2. Recharge the car battery. |
9. Warranty and Support
ACAMMZAR is committed to providing reliable products. If you encounter any issues during the use of your ACAMMZAR S815 RC Drift Car, please contact ACAMMZAR customer support for assistance. Our team is available to help resolve any problems you may experience.
For support, please refer to the contact information provided on the product packaging or the official ACAMMZAR website.