Introduction
This instruction manual provides detailed information on the setup, operation, and maintenance of your Niceminiwall Portable USB C Tester KWS-066C. This device is designed to accurately measure voltage, current, power, and other charging parameters for USB-C devices, supporting various fast charging protocols.
Product Overview
The KWS-066C is a compact USB C power meter featuring a high-definition color screen. It includes both male and female USB C ports for versatile connection.
Figure 1: Front view of the Niceminiwall KWS-066C USB C Tester, showing the display and integrated cable.
Figure 2: Detailed diagram highlighting the USB C male and female ports, display, and model information.
Specifications
| Parameter | Value |
|---|---|
| Model | KWS-066C |
| Voltage Range | 4-30V |
| Current Range | 0-6.5A |
| Power Range | 0-195W |
| Timer | 0-99 hours |
| mAh Capacity | 0-999999MAH |
| Milliwatt-hour (MWh) | 0-999999MWH |
| Temperature Range | -9~99℃ |
| Charging Internal Resistance | 0-999 ohms |
| Supported Fast Charge Protocols | QC2.0, QC3.0, PD, VOOC |
| Dimensions | 56.8mm x 25.8mm (main body, excluding cable) |
| Material | Plastic |
Setup
- Identify Ports: The KWS-066C has a male USB C connector on one end of its integrated cable and a female USB C port on the main body.
- Connect to Power Source: Plug the male USB C connector of the tester into your power adapter, power bank, or any USB C power source.
- Connect to Device: Plug your USB C charging cable into the female USB C port on the tester. Then, connect the other end of your charging cable to the device you wish to test (e.g., smartphone, tablet, laptop).
- Power On: The tester will automatically power on and display real-time charging data once connected. No additional power button is required.
Figure 3: The USB C Tester connected in-line between a power adapter and a device, displaying charging information.
Operating Instructions
Once connected, the KWS-066C will immediately display various charging parameters on its color screen. The display cycles through different data points or shows them simultaneously, depending on the screen layout.
- Voltage (V): Indicates the electrical potential difference.
- Current (A): Shows the flow rate of electric charge.
- Power (W): Calculated as Voltage x Current, representing the rate at which energy is transferred.
- mAh (Milliampere-hour): Accumulates the total charge transferred, useful for battery capacity testing.
- MWh (Milliwatt-hour): Accumulates the total energy transferred.
- Timer: Tracks the duration of the charging session.
- Temperature (℃): Displays the internal temperature of the tester.
- Charging Internal Resistance (Ω): Provides an indication of the cable or device's internal resistance.
The device is designed for simple plug-and-play operation. Data is automatically displayed and updated in real-time.
Special Features
Fast Charging Protocol Recognition
The KWS-066C automatically detects and displays support for various fast charging protocols, including QC2.0, QC3.0, PD (Power Delivery), and VOOC. This feature allows you to verify if your charger and device are utilizing an expected fast charging standard.
Power-Off Storage
The tester includes a power-off storage function. This means that accumulated mAh and MWh data will be saved even after the device is disconnected from power. This is useful for long-term capacity and energy measurements of power banks or other devices.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using liquids or abrasive cleaners.
- Storage: Store the tester in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping the device or subjecting it to strong impacts. Do not attempt to disassemble the unit.
Troubleshooting
- No Display/No Power:
Ensure both the power source and the connected device are functioning correctly. Verify that the USB C connections are secure and fully inserted.
- Inaccurate Readings:
Check if the cables used are in good condition. Faulty cables can affect readings. Ensure the power source and load device are stable. Readings may fluctuate during dynamic charging states (e.g., during fast charge negotiation).
- Fast Charge Protocol Not Detected:
Confirm that both your charger and the device being charged support the specific fast charging protocol. Not all devices or chargers support all protocols. Ensure the cable used is also compatible with fast charging.
- Data Not Resetting:
The device features power-off storage for mAh and MWh. To clear accumulated data, consult the product's specific button functions (if any) or disconnect and reconnect to start a new measurement cycle if no reset button is present.
Warranty and Support
For warranty information or technical support, please contact Niceminiwall customer service through the retailer where the product was purchased or refer to the official Niceminiwall website for contact details. Please have your model number (KWS-066C) and purchase information ready.