1. Introduction
This device is a portable power tool battery to USB/PD charging adapter, designed to convert the energy from 18V/20V power tool lithium batteries (such as Aldi Ferrex 20V Li-ion batteries) into charging power for mobile phones, tablets, and other electronic devices. It is ideal for outdoor use, construction sites, and other scenarios where mains power is unavailable. The adapter features a compact design for easy portability and includes a built-in portable 5V 2A max USB mobile power system.


2. Safety Precautions
- Ensure the power tool battery used with this adapter is fully charged before connecting.
- Avoid operating the device in high temperature, humid, or rainy environments.
- If the device becomes noticeably hot during charging, immediately stop using it and check all connections.
- Do not attempt to disassemble or modify the adapter.
- Keep out of reach of children.
3. Setup
3.1 Connecting the Battery
- Align the clips on the bottom of the adapter with the corresponding slots on your Aldi Ferrex 20V Li-ion battery.
- Gently push the adapter onto the battery until a "click" sound is heard, indicating a secure connection.

4. Operation
4.1 Starting Charging
- Once the battery is securely connected, press the power button (often a red circular button or a switch) located on the side of the device.
- The indicator light (typically blue) will illuminate, signaling that the adapter is active and ready to charge.
- Connect your mobile phone, tablet, or other electronic device to the appropriate USB-A (QC3.0) or Type-C (PD) port using a compatible charging cable.




4.2 Stopping Charging
To stop charging, simply disconnect your electronic device from the adapter. To power off the adapter, press the power button again; the indicator light will turn off.
4.3 Automatic Power Off
The device is equipped with an automatic power-off feature to conserve battery power. If no load (i.e., no device is connected or drawing power) is detected within 30 seconds of startup, the adapter will automatically power off.
4.4 Product Demonstration Video
5. Specifications
| Feature | Specification |
|---|---|
| Product Type | Battery Power Bank Adapter |
| Input Voltage | 14-21V (compatible with Ferrex 20V Li-ion batteries) |
| USB-A Output | Supports QC3.0 fast charging protocol Output: 5V/2A, 5V/3A, 9V/2A, 12V/1.5A Maximum Output Power: 18W |
| Type-C Output | Supports PD fast charging protocol Output: 5V/2A, 5V/3A, 9V/2A, 12V/1.5A Maximum Output Power: 18W |
| Portability | Compact design, easy to carry |
6. Maintenance
- Keep the adapter clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Store the device in a cool, dry place when not in use, away from direct sunlight and extreme temperatures.
- Ensure the battery contacts on both the adapter and the power tool battery are clean and free from corrosion.
7. Troubleshooting
7.1 Device Becomes Hot During Charging
If the adapter becomes noticeably hot during charging, immediately stop using it. Disconnect the electronic device and the power tool battery. Check the connections to ensure they are secure and free from any obstructions or damage. Allow the device to cool down before attempting to use it again. If the issue persists, discontinue use.
8. User Tips
- For optimal charging performance, ensure your Aldi Ferrex 20V Li-ion battery is fully charged before using it with the adapter.
- Always use high-quality, compatible charging cables for your electronic devices to ensure efficient and safe charging.
- Take advantage of the compact design for portability, making it a convenient power source for camping, job sites, or emergencies.
9. Warranty and Support
For any issues or questions regarding your Battery Power Bank Adapter, please refer to the seller's support channels. While no specific warranty information is provided in this manual, general product support can often be found through the point of purchase. A user manual in PDF format is also available for reference: View User Manual (PDF).