





9USB capacity, voltage, and current testing Monitor electrical voltage / output amperage and power draw Provides real value in identifying whether you have an issue with your charging cables, wall charger, car charger, computer USB port, or power bank when charging mobile phones and other devices.... When you notice charging is very slow... or the device heats up during charging... or the wall charger gets hot... or there's no charging at all... all you need to do is check the values and readings below to identify and understand if the problem lies with the power source (wall adapter, power bank, car adapter) or with the cable........ You will clearly observe differences in readings, allowing you to distinguish and sort between poor-quality and good charging cables.... Screen symbols and their meanings: ◾V / Voltage output from the source ◾A / Amperage drawn by the device being charged ◾T / Time since the device was connected to the charger ◾mAh / Milliampere-hours of energy consumed by the device How can you benefit from reading these previous values? Check the voltage (V): if the reading is above 5.3 volts or below 4.8V, this indicates a problem with the power source. If the amperage (A) shows a very low value such as 0.5A, this indicates a poor-quality charging cable or adapter, or that the device does not support fast charging. ◾Note that voltage and current values automatically decrease as devices approach full charge, and some devices naturally draw very small currents suitable for them, such as earphones.... ◾Reset button to clear previous data and start anew Practical useful applications: Test charger efficiency—check whether the charger delivers the required current Compare charging cables—poor-quality cables reduce charging speed Determine how much power a specific device consumes over a certain period Other features: Measures voltage from 4 volts to 20 volts Current from 0 to 3A Time from zero to 99 hours ⭕ Price: 12 SAR only.... cheapest ⭕ ✅ Small, lightweight, accurate, and affordable USB measuring device ✅
