This product can test USB charging current, voltage, discharge capacity, intelligent devices.
It will show the current and voltage at the same time, convenient to check.
It can be very easy to find digital devices charging problem.
The only button on the tester is used to view and test data switch, the tester can store 10 groups of test data.
If there were no battery, it won't lose the data it has tested.
It can test current and voltage of phone, mobile power bank etc.
With a USB output port and a micro USB input, convenient to test devices
With LCD screen, easy to see the current and voltage of the devices
Press the small circle button and the data will be zero, then you can test next data
Portable design, easy to carry
The Resistor Module:
Resistor will be hot when dicharging resistance, temperature is about 80-85 centigrade
Indicator: 1A green light, 2A red light
Weight: 14 g
Dimention: 2.91 x 0.75 x 0.39 inches (7.4 x 1.9 x 1.0 cm)
The first group of pictures charger test
iPad original charger connected to 2A load resistor, the output current and voltage is 5.01V 1.89A
iPad original charger via USB HUB, connected to the 2A load resistor and mobile phones, the measured value of the maximum current and volatage is 5.01V/2.28A , very good charger.
Salcomp (a Nokia company) charger connected to 2A load resistor, the output and volatage is 5.01V /1.89A
Salcomp ( a Nokia company) charger via USB HUB, connected to the 2A load resistor and mobile phones, the measured value of the maximum current and voltage is 5.06V / 2.20A, very good charger.
Mobile power connector USB HUB for mobile phone charging, the measured voltage and current values 5.00V / 0.44A
Mobile power via USB HUB, connected to the 2A load resistor and mobile phones, the measured value of the maximum current and voltage 4.86V 1.96A, still good mobile power.
The second group of pictures USB data cable tests
LG 1m original data cable, 1A current charger, USB tester, test result 4.8V / 0.92A
Samsung 1.5m original data cable, 1A current charger, USB tester, test result 4.80V / 0.92A
Orange data cable, 1A current charger, USB tester, test result 4.22V / 0.81A. This cable quality is no good.
Mobile power discharge capacity test
Beginning discharge is 0001mAh
After 10 minutes the discharge capacity is 0164mAh
We conclued that the charging current is 0.98A, after 10 minutes the discharge capacity is 164mAh.
Note: This data is mobile power discharge capacity, not battery capacity. According to our experience, the mobile power discharge capacity is about 1.9 times of the battery capacity.