USB Tester Digital DC Current Voltage Capacity Power Detector Power Bank Charger indicator

3 Working Modes
1) OFF mode
In this mode, charge the phone. When the phone is connected, charging starts; when the phone is disconnected, charging stops.
2) A0 mode
This mode is a smart charging mode, which means that the phone will automatically cut off the power after it is fully charged to achieve the purpose of protecting the phone. Long press the button before charging to reset the timing, electrical setting, and holding value to zero.
For example:in this mode, plug in the mobile phone to charge, when the mobile phone is charged to 100%, it will continue to charge for about _hours. The screen displays the word ‘OFF’ (indicating disconnect to charge the phone), until the user short presses the button to return to normal, at this time you can check the charging time, battery S and capacity S values.
3) Timing mode
When charging in this mode, the charging time is set by the user. When the mobile phone is plugged in for charging, the timing time is counted down. When the timer decreases to 0, the monitor cuts off the voltage to the mobile phone, stops charging, and the buzzer ‘beep’ ‘After a beep, the screen displays the word ‘OFF’ (indicating disconnect to charge the phone) until the user short presses the button to return to normal. At this time, you can view the charging time, power and capacity values.
For example:if the user understands that it takes 4 hours to fully charge their mobile phone, set the working mode to timing mode and the timing time is 4:00 hours, connect the mobile phone charging cable (the charging cable is connected to the mobile phone), and then start charging. The timer starts to decrease from 4:00 hours (decrease by 1 minute each time), until it reaches 0, the monitor automatically cuts off the voltage for charging the mobile phone, stops the charging buzzer with a beep, and the screen displays OFF (indicating disconnection) Charge the mobile phone), until the user short presses the button to return to normal, then you can view the charging time, power and capacity value.
Package includes
1 x USB Tester