DESCRIPTION :- 

KWS-V20 USB Current Voltmeter USB Tester

The KWS-V20 USB Current Voltmeter and USB Mobile Power Capacity Tester is an essential tool for individuals working with USB-powered devices and power sources. It provides precise monitoring and evaluation of USB-related parameters, ensuring the efficiency and safety of electronic equipment. This compact tester enables real-time monitoring of voltage and current, assessment of USB power source capacity, and verification of the efficiency and safety of USB-powered devices.

Feature:

1. Multifunctional Testing Tool: Measure voltage, current, discharge flow, and more. The tool also includes timing and overvoltage protection features, making it incredibly versatile.

2. Portable and Easy to Use: Its small size and portability allow you to use it anywhere and anytime. The screen displays current and voltage data for easy viewing.

3. Data Saving Function: Automatically saves data when the power supply is interrupted, ensuring you don’t lose important measurement data.

4. Quality Testing for Micro USB Cables: Evaluate the quality of Micro USB cables by measuring the voltage difference when charging a device. A smaller voltage difference indicates better cable quality.

1. Battery Capacity Testing: Use it to fully charge a battery from completely no power using a linear charging circuit like TP4056. The capacity data displayed is the battery capacity. You can also test the charging capacity of mobile phones.

2. Portable Power Source Capacity Testing: Connect the tool to a portable power source, discharge it to zero capacity, and then recharge it. The displayed capacity is the portable power source’s output in mAh.