USB Tester .. Check USB charging ports. Those ports through which you charge your phones, whether it's a car charger port, a portable charger, a wall charger, or a computer port. Connect it between the charging port and the other end, connect the cable to the phone, and you will know if there are problems with the charging ports or cables. It provides real benefit in knowing if there is a problem with the charging cables, the wall charger, the car charger, the computer charging port, or the power bank, especially for charging phones and other devices... You will notice very slow charging... or the device overheating during charging... or the wall charger overheating. Or no charging at all. All you have to do is compare the values and readings on the screen of this device with the values below to identify and understand the problem ✅ Reading the screen symbols and their meanings: ◾V / Voltage output from the source ◾A / Amperage the device draws from the charger ◾T / Time since the device was connected to the charger ◾mAh / Milliampere-hour, the energy consumed by the device The following readings are normal and ideal: ◾ Charging from a computer port Normal 5.0 to 4.8 volts - Amperage 0.5 to 0.4. Slow charging. ◾ Normal wall charger 5V / 1A: Normal 5.1 to 4.9 volts - Amperage 1.0 to 0.8. Slow to medium charging. ◾ Fast wall charger 5V2A: Normal 5.0 to 5.1 volts. Amperage 2.4 to 1.5. Fast charging. Notice if the voltage reading is less than 4.5 volts, the cable is bad or too long ❌ Amperage less than 0.5 amps, even though the charger is good, means the cable or USB port is weak ❌ The device does not charge at all, the cable is broken or the charger is damaged ❌ Measures voltage from 4 volts to 20 volts Current from 0 to 3A Time from zero to 99 hours ⭕ Price 15 Riyals only... ⭕