The first ever tester to verify the quality of USB cables and chargers in a simple and intuitive way, especially for non-technical personnel. This article refers to the address: http:// QooPowqualMeter Introduction QooPowqualMeter is a revolutionary, intelligent and cost-effective DIY device that helps you quickly and easily diagnose and understand USB cables and chargers, even without any technical background. QualMeter can be used to test a variety of mainstream USB charging cables. It can also test the load capacity of a 5V charger to roughly determine its quality. Technical tips Want to know why your device is charging so slowly? Because a failed charging cable can cause a large voltage drop. For example, if you choose a charging cable like most low-quality cables, the internal impedance is 500 milliohms, then a 1V current charging will produce a voltage drop of 0.5V, which means that if you The charger is charged at 5V, and the charging voltage on the mobile phone is only 4.5V. Most smart phones will not even charge at this voltage, which explains many of the problems we have encountered in charging. Moreover, with the large-scale application of smart devices, the charging current becomes higher and higher. Many devices like pads and tablets use 2A current to charge, so the quality of charging cables is now becoming more important. Also take the above example to explain, in the 2A charging current, will produce a voltage drop of 1V, the device side charging voltage is only 4V. In addition to the potential for security issues, such a low voltage does not even charge the device for smart devices. To make matters worse, it is not easy for most non-technical personnel to evaluate the performance of charging cables and chargers, sometimes for technicians. Because this requires not only a certain amount of electronic expertise, but also expensive testing equipment. It has been found that evaluating different types of charging products is a daunting task. Now, with qualMeter, we can make things a bit easier. This is a revolutionary product that allows everyone to manage charging in the simplest and smartest way. This unique qualMeter was born from the simple idea that everyone can measure the quality of any charging cable/charger in a simple, cost-effective way. It aims to achieve a simple and easy solution at a fairly low cost. qualMeter is designed for non-technical people, but it can certainly be used by technicians for rough measurements. Vape By Puffs,Disposable Light Vape,Disposable Device Pen,Vape Pod Smoke Guangzhou Yunge Tianhong Electronic Technology Co., Ltd , https://www.e-cigarettesfactory.com
