1. Product Overview
This adapter is designed to convert Erbauer EXT 18V Li-ion batteries into a power source for various DIY projects, including power wheels and other cordless tools. It provides a convenient way to utilize your existing Erbauer 18V batteries for custom applications.

Figure 1: Erbauer EXT 18V Li-ion Battery Adapter attached to a compatible battery.
2. Safety Information
- Always handle the adapter and battery with care.
- Ensure proper polarity when connecting the output wires (red for positive, black for negative). Incorrect wiring can damage the adapter, battery, or connected device.
- This product is an adapter for power output; it is NOT a battery charger. Do not attempt to charge batteries through this adapter.
- Do not short-circuit the output wires.
- Keep out of reach of children.
- Disconnect the battery from the adapter when not in use to prevent accidental discharge.
3. Setup and Installation
- Identify Compatible Battery: Ensure you are using a compatible Erbauer EXT 18V Li-ion battery, such as models EBAT18-Li-2, EBAT18-Li-3, EBAT18-Li-4, or EBAT18-Li-5.
- Attach Adapter to Battery: Align the adapter with the battery's terminals and slide it on until it locks securely into place. The adapter is designed to fit snugly onto the battery.
- Connect Output Wires: The adapter comes with 14 inches of 14 gauge wire. The red wire is positive (+), and the black wire is negative (-). Connect these wires to your DIY project or device, ensuring correct polarity.
- Mounting (Optional): The adapter features three screw holes for easy fixing. If desired, you can mount the adapter securely to your project using appropriate screws (not included).

Figure 2: Bottom view of the adapter, showing the interface for connecting to the battery.

Figure 3: Side view of the adapter, highlighting the red (positive) and black (negative) output wires.

Figure 4: Top view of the adapter, indicating the three screw holes for secure mounting.
4. Operating Instructions
Once the adapter is securely attached to a charged Erbauer EXT 18V Li-ion battery and the output wires are correctly connected to your device, the adapter will provide 18V DC power. Simply activate your device as intended. Monitor your battery's charge level and disconnect the adapter when the battery is depleted or when the device is not in use.
5. Maintenance
- Cleaning: Wipe the adapter with a dry, clean cloth. Do not use harsh chemicals or abrasive cleaners.
- Inspection: Regularly inspect the adapter for any signs of damage, such as cracks in the plastic housing or frayed wires. Do not use a damaged adapter.
- Storage: Store the adapter in a dry, cool place away from direct sunlight and extreme temperatures. Disconnect it from the battery before storage.
- The adapter is made of high-quality ABS plastic, offering excellent scratch, impact, and chemical resistance, making it suitable for both indoor and outdoor use.
6. Troubleshooting
- No Power Output:
- Ensure the Erbauer EXT 18V battery is fully charged.
- Verify the adapter is securely locked onto the battery.
- Check all wire connections for proper polarity (red to positive, black to negative) and ensure they are secure.
- Inspect the output wires for any damage or breaks.
- Adapter Not Locking onto Battery:
- Ensure the battery is a compatible Erbauer EXT 18V Li-ion model.
- Check for any obstructions or debris on the battery or adapter terminals.
7. Specifications
| Feature | Specification |
|---|---|
| Compatibility | Erbauer EXT 18V Li-ion Batteries (e.g., EBAT18-Li-2, EBAT18-Li-3, EBAT18-Li-4, EBAT18-Li-5) |
| Output Voltage | 18V DC (dependent on battery) |
| Output Wire Length | 14 inches |
| Output Wire Gauge | 14 AWG |
| Material | High-quality ABS Plastic |
| Dimensions (approx.) | 10 cm (Length) x 10 cm (Width) x 4 cm (Height) |
| Weight (approx.) | 0.08 kg |
8. Warranty and Support
For warranty information or technical support, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
9. User Tips
- Always ensure the battery is fully charged before starting a project to maximize runtime.
- When mounting the adapter, use screws of appropriate length and diameter to avoid damaging the adapter or your project surface.
- Consider adding an inline fuse to your project's power circuit for added protection against overcurrent.
- If using for high-drain applications, ensure your wiring and components are rated for the current draw to prevent overheating.





