1. Introduction
Thank you for choosing the KFD 15V 4A Universal Power Supply. This versatile power adapter is designed to provide reliable and efficient power to a wide range of electronic devices requiring 15V DC input, up to 4A. With its multiple interchangeable tips, it offers broad compatibility, making it an ideal replacement or spare power source for various applications including monitors, speakers, printers, CCTV cameras, LED lighting, musical instruments, and scanners.
Figure 1: KFD 15V 4A Universal Power Supply with included accessories.
2. Package Contents
Please verify that all items are present in your package:
- 1 x Portable power supply with 5.5*2.1mm plug
- 1 x US Power cable
- 7 x Converter Plugs (6.5*4.4mm, 5.5*3.0mm, 5.5*2.5mm, 4.8*1.7mm, 4.0*1.7mm, 3.5*1.35mm, 2.5*0.7mm)
3. Setup Instructions
Before connecting the power supply, it is crucial to confirm the voltage and current requirements of your device, as well as the correct connector size. Using an incorrect voltage or connector size can damage your device.
- Verify Device Requirements: Check your device's original power adapter or its specifications for the required output voltage (V) and current (A). This power supply provides 15V and up to 4A. It is compatible with devices requiring 15V and any current from 0.5A to 4A (e.g., 15V 1A, 15V 2A, 15V 3A, 15V 3.5A).
- Select the Correct Tip: Identify the correct connector tip that fits your device's power input port. The power supply comes with a standard 5.5*2.1mm barrel plug and 7 additional converter plugs to ensure broad compatibility. Refer to the diagram below for tip sizes.
- Attach the Tip: Firmly attach the selected converter plug to the end of the power supply's DC output cable. Ensure it is securely seated.
- Connect Power Cable: Plug the US power cable into the power supply unit.
Figure 2: Available Multi-Tips and their dimensions for various devices.
Figure 3: Guide to selecting the correct adapter and tip for your device.
4. Operation
Once the correct tip is attached and the power cable is connected to the power supply unit:
- Plug the selected connector tip into your electronic device's power input port.
- Plug the US power cable into a standard 100-240V AC wall outlet.
- Your device should now receive power.
This universal power supply is compatible with a wide array of devices, including but not limited to:
- Anker Soundcore Rave Mini A3390, Soundcore Trance A3393 Speaker
- Neewer Photography 14" and 18" Photo Studio Ring Light
- ION Tailgater Express IPA70, Ion Audio Sport Go IPA104 Speaker
- Polk Audio Signa Solo/Solo GE Universal Home Theater Sound Bar Speaker, DSB1 DSB2 AM9114A Magni-Fi Mini Soundbar System
- Native Instruments NI Traktor Kontrol Audio S4 MK2, S25, S49, S61, S88
- Yamaha THR10, THR10C, THR10X, THR5, THR5A Guitar Amplifiers
- SKYRC PSU-60W IMAX B6 & B6 Mini Balance Chargers
- Epson LabelWorks Desktop Professional Label Maker Printer (various models)
Figure 4: The KFD power supply's wide range of applications.
5. Maintenance
To ensure the longevity and optimal performance of your KFD Universal Power Supply, follow these simple maintenance guidelines:
- Keep Clean: Wipe the power supply and cables with a soft, dry cloth. Avoid using liquid cleaners or abrasive materials.
- Store Properly: When not in use, store the power supply in a cool, dry place, away from direct sunlight and extreme temperatures.
- Handle with Care: Avoid bending or crimping the cables excessively, especially near the connectors, to prevent internal wire damage. The cable is designed for durability, having passed 5000+ bending tests.
- Avoid Overloading: Do not connect the power supply to devices that require more than 4A of current at 15V.
6. Troubleshooting
If you encounter issues with your KFD Universal Power Supply, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to device | Incorrect tip selected or loose connection; Power outlet issue; Device not compatible; Faulty power supply. | Ensure the correct tip is firmly attached and fully inserted into the device. Check if the power cable is securely plugged into both the power supply and the wall outlet. Test the wall outlet with another device. Verify your device's voltage and current requirements match the power supply (15V, up to 4A). If issues persist, contact customer support. |
| Power supply gets hot | Normal operation; Overload; Poor ventilation. | A slight warmth during operation is normal. Ensure the power supply is not covered and has adequate ventilation. Verify your device's current draw does not exceed 4A. If it becomes excessively hot, disconnect immediately and contact support. |
| Device not charging/powering efficiently | Insufficient current; Cable damage. | Ensure your device's current requirement is within the 4A limit. Inspect the cables for any visible damage. |
If the problem persists after attempting these solutions, please contact KFD customer support for further assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Input Voltage | 100-240V AC, 50-60Hz |
| Output Voltage | 15V DC |
| Output Current | 4A (compatible with 0.5A, 1A, 1.5A, 2A, 2.5A, 3A, 3.5A) |
| Power Output | 60W |
| Connector Size | 5.5*2.1mm barrel plug (with 7 additional tips) |
| Included Tips | 6.5*4.4mm, 5.5*3.0mm, 5.5*2.5mm, 4.8*1.7mm, 4.0*1.7mm, 3.5*1.35mm, 2.5*0.7mm |
| Dimensions (Power Unit) | Approximately 92mm x 48mm x 25mm (L*W*H) |
| Item Weight | 13.6 ounces |
| Color | Black |
| Certifications | UL / CE / FCC / RoHS certified |
8. Safety Information
The KFD Universal Power Supply is designed with multiple safety protections to ensure safe and reliable operation. Please observe the following safety guidelines:
- Indoor Use Only: This power supply is intended for indoor use. Do not expose it to rain, moisture, or extreme temperatures.
- Proper Ventilation: Ensure the power supply has adequate ventilation during use. Do not cover it or place it in an enclosed space that could lead to overheating.
- Avoid Damage: Do not drop, disassemble, or attempt to repair the power supply yourself. Refer all servicing to qualified personnel.
- Correct Usage: Always verify the voltage and current requirements of your device before connecting the power supply. Use only the provided power cable and tips.
- Safety Protections: The unit features built-in protections against:
Figure 5: Built-in Safety Protections of the KFD Power Supply.
- Over Charge Protection
- Over Voltage Protection
- Short-circuit Protection
- Over Current Protection
- Over Temperature Protection
Figure 6: UL Listed certification, ensuring product safety standards.
9. Warranty and Support
KFD stands behind the quality of its products. Your KFD 15V 4A Universal Power Supply comes with the following warranty:
- 30 Days Free Exchange: For any issues within 30 days of purchase.
- 36 Months Warranty: Comprehensive warranty coverage for 3 years from the date of purchase.
For technical support, warranty claims, or any questions regarding your KFD product, please contact KFD customer service. Refer to the contact information provided on the product packaging or the official KFD website.
