2UUL PW21 Mini Charging Tester User Manual

1. Introduction

The 2UUL PW21 Mini Charging Tester is a compact and versatile device designed for precise measurement and detection of charging parameters for various electronic devices, including mobile phones, iPads, and laptops. It features bidirectional current detection and a clear display to monitor real-time voltage, current, power, capacity, energy, timing, and even CPU temperature.

Figure 1: 2UUL PW21 Mini Charging Tester

2. Key Features

• Bidirectional Current Detection: Accurately measures current flow in both directions.
• Wide Compatibility: Suitable for mobile phones, iPads, laptops, and other USB-C powered devices.
• Comprehensive Parameter Monitoring: Displays Voltage (V), Current (A), Power (W), Timing (T), Capacity (mAh), Energy (mWh), and CPU Temperature.
• Fast Charging Protocol Support: Compatible with PD2.0, 3.0, PPS, QC2.0, 3.0FCP, SCP AFC, PE, DASH VOOC, Super VOOC.
• Intuitive Display: Clear screen with multiple interfaces and screen rotation for ease of use.

Figure 2: Compatibility with various mobile devices

Figure 3: High power charging and protocol support

3. Specifications

4. Package Contents

The package typically includes:

• 1 x 2UUL PW21 Mini Charging Tester

5. Setup Instructions

To begin using your 2UUL PW21 Mini Charging Tester, follow these simple steps:

1. Connect to Power Source: Plug the male USB-C end of the 2UUL PW21 tester into your charging source (e.g., wall charger, power bank, laptop USB-C port).
2. Connect Device: Connect your mobile phone, iPad, laptop, or other device to be tested to the female USB-C port on the 2UUL PW21 tester using a compatible charging cable.
3. Power On: The tester will automatically power on and display real-time charging data once connected.

Figure 4: Bidirectional current testing setup

6. Operating Instructions

6.1 Display Overview

The tester's display provides various real-time measurements. Refer to the diagram below for a detailed explanation of each parameter:

Figure 5: Detailed display parameters and their meanings

• ① Voltage (4-30V): Displays the current voltage.
• ② Current (0-12A): Displays the current amperage.
• ③ Timing (0-99 hours): Records the duration of the charging process.
• ④ Power (0-360W): Displays the current power consumption.
• ⑤ Capacity (0-99999mAh): Records the accumulated charge capacity.
• ⑥ Record the highest power in a single time: Shows the peak power recorded.
• ⑦ Record maximum current in a single time: Shows the peak current recorded.
• ⑧ Record the highest voltage in a single time: Shows the peak voltage recorded.
• ⑨ Record the highest voltage in a single time: (Note: This appears to be a duplicate label in the source image, likely referring to another peak value or an error in the original diagram. Please refer to the actual device for clarification.)
• ⑩ Electric energy (0-99999WH): Records the accumulated electrical energy.
• ⑪ CPU temperature: Displays the internal CPU temperature of the tester.

6.2 Interface Switching

The 2UUL PW21 features multiple display interfaces to show different sets of data. To switch between Interface 1 and Interface 2, simply click the button located on the side of the tester.

6.3 Screen Rotation

For optimal viewing, the screen display can be rotated 180 degrees. To reverse the screen direction, double-click the button on the side of the tester.

Figure 6: Interface switching and screen rotation instructions

6.4 Video Demonstration

For a visual guide on how to use the 2UUL PW21 Mini Charging Tester, please watch the demonstration video below:

7. User Tips

• Always ensure a secure connection between the charger, tester, and device to get accurate readings.
• Use high-quality cables to avoid data interference or power loss during testing.
• The bidirectional current detection allows you to test both charging and discharging scenarios if applicable to your setup.

8. Troubleshooting

• No Display/No Readings:
  • Check all connections to ensure they are firm and correctly inserted.
  • Verify that the power source (charger) is functioning correctly.
  • Try a different USB-C cable.
  • Ensure the device being charged is compatible and drawing power.
• Inaccurate Readings:
  • Ensure the cables used are of good quality and not damaged.
  • Avoid using excessively long cables, which can introduce resistance.
  • Test with a known good charger and device to compare readings.
• Screen Frozen/Unresponsive:
  • Disconnect and reconnect the tester from the power source to reset it.

9. Maintenance

• Keep the device clean and free from dust and debris. Use a soft, dry cloth for cleaning.
• Avoid exposing the tester to extreme temperatures, humidity, or direct sunlight.
• Do not attempt to disassemble the device, as this will void any potential warranty and may cause damage.
• Store the tester in a safe place when not in use to prevent physical damage.

10. Warranty and Support

For warranty information or technical support, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.