GUY-TECH 50704E00270

Instruction Manual for GUY-TECH 5V USB-C Replacement Charger

Brand: GUY-TECH | Model: 50704E00270

1. Product Overview

This GUY-TECH 5V USB-C Replacement Charger is designed to provide a reliable power supply for compatible devices, such as the Comfytemp K4008 V1.0 Red Light Knee Massager with a 5000mAh battery. It is a compact and efficient power adapter.

Image 1.1: The GUY-TECH 5V USB-C Replacement Charger with its integrated cable.

Key Features:

Input Voltage: AC 100V - 240V, suitable for worldwide use.
Safety Protections: Features Over Voltage Output Protection, Over Current Output Protection, and Short Circuit Output Protection to safeguard your device.
Efficiency: Designed for high power exchange efficiency, ensuring stable working and controlled operating temperature.
Portability: Small and lightweight design for convenience, portability, and easy storage.
Compatibility: Specifically designed as a replacement charger for devices requiring a 5V DC USB Type C power supply.

Details of the charger including American plug, thick copper core, and flexible cord

Image 1.2: Detailed view highlighting the American plug type, the thick copper core for durability, and the flexibility of the power cord.

Charger being placed into a bag, illustrating its portability

Image 1.3: The compact size of the charger allows for easy portability and storage in bags or pockets.

2. Setup Instructions

To set up your GUY-TECH 5V USB-C Replacement Charger, follow these simple steps:

Verify Compatibility: Ensure your device requires a 5V DC input and utilizes a USB Type C port for charging. This charger is specifically designed for USB-C compatible devices.
Connect to Power Outlet: Insert the charger's two-prong plug into a standard AC 100V-240V wall outlet.
Connect to Device: Plug the USB Type C connector of the charger's cable into the charging port of your compatible device.

Image 2.1: The charger securely plugged into a standard wall power outlet.

Comparison showing correct USB-C connector and incorrect Micro USB connector

Image 2.2: Ensure your device uses a USB-C port (left) and not a Micro USB port (right) for proper connection.

3. Operating Instructions

Once connected, the charger will automatically begin supplying power to your device. The charging process is straightforward:

Automatic Charging: The charger will detect your device and initiate charging.
Safety Features: Built-in protections (Over Voltage, Over Current, Short Circuit) work automatically to prevent damage to both the charger and your connected device.
Indicator (if applicable): Refer to your device's manual for information on charging indicators (e.g., LED lights) that signal charging status. The charger itself does not have an external indicator light.

Always ensure the charger is used in a well-ventilated area and avoid covering it during operation to prevent overheating.

4. Maintenance

Proper maintenance will extend the lifespan of your GUY-TECH charger:

Cleaning: Disconnect the charger from the power outlet and your device before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or abrasive materials.
Storage: Store the charger in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tightly winding the cable to prevent damage.
Handling: Do not drop, disassemble, or attempt to repair the charger yourself. This can void the warranty and pose safety risks.
Cable Care: Regularly inspect the cable for any signs of fraying, cuts, or damage. If damage is observed, discontinue use immediately.

5. Troubleshooting

If you encounter issues with your charger, refer to the following common troubleshooting steps:

Problem	Possible Cause	Solution
Charger not supplying power.	No power from outlet. Loose connection. Incompatible device. Damaged charger/cable.	Test the outlet with another device. Ensure both ends of the cable are securely plugged in. Verify your device requires 5V DC and has a USB-C port. Inspect charger and cable for visible damage. If damaged, discontinue use.
Slow charging.	Device drawing more power than supplied. Background apps on device.	Ensure the charger's output matches your device's requirements. Close unnecessary applications on your device.
Charger feels warm.	Normal operation. Poor ventilation.	A slight warmth is normal during charging. Ensure the charger is in a well-ventilated area and not covered. If it becomes excessively hot, disconnect immediately.

If the problem persists after trying these steps, please contact GUY-TECH customer support for further assistance.

6. Specifications

Detailed technical specifications for the GUY-TECH 5V USB-C Replacement Charger:

Feature	Detail
Brand	GUY-TECH
Model Number	50704E00270
Manufacturer	SHENZHEN XINGSENXIANG
Input Voltage	AC 100V - 240V
Power Source Type	Corded Electric
Connector Type	USB Type C (Plug)
Number of Ports	1
Compatible Devices	Devices requiring 5V DC USB Type C input (e.g., Comfytemp K4008 V1.0 Red Light Knee Massager, Monitors, Printers, Speakers, Tablets)
Special Feature	Travel-friendly design
Material	Metal Plastic Composite
Color	Black
Certifications	CCC, CE, RoHS
Dimensions (approx.)	2.92 in (length) x 1.58 in (width) x 1.18 in (height) - Refer to Image 6.1 for visual representation.

Dimensions of the charger: 2.92 inches long, 1.58 inches wide, 1.18 inches high

Image 6.1: Approximate dimensions of the charger unit.

7. Warranty and Support

Specific warranty details are not provided in the product information. For warranty claims, technical support, or any inquiries regarding your GUY-TECH 5V USB-C Replacement Charger, please contact the manufacturer or the seller directly through your purchase platform.

Always retain your proof of purchase for any warranty or support requests.

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