1. Introduction
This manual provides essential information for the safe and effective use of your Blomiky 7.4V 1000mAh Li-ion rechargeable battery with SM-4P plug. Please read these instructions carefully before use and retain for future reference. This battery is designed for various RC vehicles, including specific models like the LARVEY 2WD 1:16 Scale Remote Control Car, DEERC DE36W and DE65 Remote Control Cars, Kelegend K-301 1/12 Scale RC Trucks, and BLUEJAY NO.1809 1:12 Scale RC Trucks.
2. Safety Information
WARNING: Lithium-ion batteries require careful handling. Failure to follow these safety guidelines may result in fire, personal injury, or property damage.
- Do not disassemble or short-circuit the battery.
- Do not dispose of in fire or put into water.
- Never leave charging batteries unattended.
- Disconnect the charger if batteries become hot or puff.
- Always use the standard charger provided or recommended by the original supplier.
- Turn off or remove the battery from the device when not in use.
3. Package Contents
Your package includes the following items:
- 2 x Blomiky 7.4V 1000mAh Li-ion Rechargeable Battery with SM-4P Plug
- 2 x USB Charging Cable

4. Specifications
| Feature | Specification |
|---|---|
| Battery Type | Li-ion Rechargeable Battery |
| Voltage | 7.4V |
| Capacity | 1000mAh (Real capacity approx. 1000mAh-1500mAh) |
| Plug Type | SM-4P |
| Plug Cross-Section Size | 10.6 x 5 mm / 0.42 x 0.2 inch |
| Battery Dimensions | 52 x 56.6 x 15 mm / 2.05 x 2.23 x 0.58 inch |
| Battery Weight | 73 grams / 2.56 oz |
| Charging Time | 4-8 hours for full charge |
5. Setup and Installation
Before installing the battery, ensure your RC vehicle is powered off. Carefully locate the battery compartment in your RC car or truck. The SM-4P plug features two black cables for negative polarity and two red cables for positive polarity. Ensure the positive cables align correctly with your device's connection port.

Connect the battery's SM-4P plug to the corresponding port on your RC vehicle. Ensure a secure connection to prevent power interruptions during operation.
6. Charging Instructions
Use the provided USB charging cable to charge your Blomiky Li-ion battery. The USB cable has a built-in over-charged protection board for safety.
- Connect the battery's SM-4P plug to the charging cable's port.
- Plug the USB end of the charging cable into a standard USB power source (e.g., computer, USB wall adapter).
- During charging, a red light on the USB cable will be solid.
- Once the battery is fully charged, the red light will turn off.
- Charging typically takes 4-8 hours. Do not leave the battery unattended during charging.

Note: The package includes two batteries and two charging cables, allowing you to charge both batteries simultaneously if you have two available USB power sources.
7. Operating Instructions
Once the battery is fully charged and securely installed in your RC vehicle, you can begin operation. Refer to your RC vehicle's specific manual for detailed operating instructions. Always ensure the battery is properly connected before powering on your device.
8. Maintenance
- Store batteries in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid fully discharging the battery, as this can reduce its lifespan.
- If the battery will not be used for an extended period, charge it to approximately 50% capacity before storage.
- Regularly inspect the battery and its connectors for any signs of damage or wear.
9. Troubleshooting
- Battery not charging: Ensure the USB cable is securely connected to both the battery and the power source. Check if the power source is active. Verify the charging indicator light is solid red.
- Shortened run time: This may indicate the battery is not fully charged or is nearing the end of its lifespan. Ensure a full charge cycle (4-8 hours).
- Battery not fitting: Confirm the battery dimensions (52x56.6x15mm) match your vehicle's battery compartment.
10. Warranty and Support
For warranty information or technical support, please refer to the seller's contact information on the product packaging or your purchase platform. Keep your proof of purchase for any warranty claims.