USB tester - voltage and current Отзыв

Measures voltage and current in USB portsControl the power quality of connected devices! A USB tester is an item of first importance for repairers of computers, laptops, phones. With the help of the device, you can clearly determine whether the cause of the breakdown is in improper nutrition or is hidden elsewhere. If you notice that the battery has begun to charge worse and hold less, test the current that enters the smartphone using a USB tester. Perhaps it is lower / higher than the one that is desirable for charging? This is a frequent occurrence, since the voltage in our network often “jumps”. And you, unknowingly, ruin the battery life of your smartphone/laptop and other gadgets. In such cases, you will need to replace the charger with one that regulates the output voltage and charges the battery correctly. USB tester "Charger Doctor" automatically alternates voltage and current readings every 4 seconds, taking new readings every 2 seconds. Equipped with standard plug and USB port. Specifications Power: 3.5-7.0 W Port type: USB (type A) Reading time: every 2 seconds Reading timing: 4 seconds