"COOWOO USB Current Voltage Tester Checker / Trigger" Usage Reviewing whether charger and cable are working properly, voltage current, compliant standard etc. by one shot Review

"People who have troubles that they should be connected to the charger, they do not feel like they are being charged," or "The charger body or cable seems to be broken, but I do not know which is broken" There should not be few. In such a case, measure the voltage current output from the charger and visually check the condition of the charger "COOWOO USB current voltage tester checker fast charge QC 3.0 / QC 2.0 / MTK-PE compatible"ButCOOWOOIt is on sale. Upward compatible "COOWOO USB current voltage trigger meter fast charge QC 3.0 / QC 2.0 / MTK-PE compatibleI bought it together, so I tried using it immediately.

This is the box of "COOWOO USB current voltage tester checker". The surface is firmly described as "quick charge QC 3.0 / QC 2.0 / MTK-PE / iPhone 2.4 A compatible".


When opening the lid, sponge comes out first. When I removed it, there was a Japanese instruction manual below.


Take out the tester. The male USB port is a double insertion type.


The opposite female side was a single insertion type.


Use iPhone 7, which has declined in charge, to see how this tester works.


Easy to use. Disconnect the USB cable from the power adapter that is charging the iPhone.


Then connect it with a tester in between. This is all OK. When the tester connects to the power adapter, a "beep" sound is heard and the screen is displayed. You can see that the current state of charge is displayed on the small LCD screen. The top is the power supply voltage and power supply current in order from the left. In the usual iPhone charging adapter, the voltage is 5.00 V, the current is 0.95 A. The items below it are the cumulative current charged from connecting the tester (mAh), Cumulative voltage (Wh) And temperature, charging time has become.


Leave it for a while and measure how much it is charged in 3 minutes.


After 3 minutes it was in a charged state like the image. The cumulative current is 48 mAh.


Next, once again, reduce the charge to about the same as before, this time the screen when charging from the USB port of PC for 3 minutes. You can see that the cumulative current is obviously small, although it is the same charging time than charging from the normal power supply. Since it is 21 mAh in the image, it is about half or less as compared with ordinary power supply.


"We responded to 50% fast charging in 30 minutes"I also purchased a charger compatible with iPhone 8, so I will try to measure it with "COOWOO USB current voltage tester checker" here.


Since this tester is not compatible with the USB-C type, this time we will use an adapter that converts from USB-C type to single sided insertion USB.


When measured immediately, the value of the power supply current was 1.49 A. Compared to the adapter we measured up to the previous, the power supply voltage does not change while the power supply current is 0.54 A larger.


This is the result when 3 minutes elapsed. The cumulative current is 73 mAh, which shows that 25 mAh is charged much more than in the case of charging with the normal charger for the same time. In this way, you can understand what kind of specification the charger singing "high speed charging" actually has, using this tester in one shot.


Next, I will use "COOWOO USB current voltage trigger meter" which can be said to be upward compatible with the "COOWOO USB current voltage tester checker" we have reviewed so far.


When opening the box and taking out Japanese instructions, the "COOWOO USB current voltage trigger meter" that was put under it appeared.


In addition to the function of "COOWOO USB current voltage tester checker" used heretofore, this is a quick charging standardQC 2.0,QC 3.0,MTK-PEIt acts as a compatible device. By charging and charging this QC 3.0 device in this trigger, you can solve the question "Does the charger singing this QC 3.0 actually support QC 3.0?" Without the corresponding device Excellent thing. By pressing the "Key" button at the top while connected to the charger, you can check the QC 3.0 compatible charger, check the charger compatible with QC 2.0, check the charger compatible with MTK - PE, normal measurement mode, It switches to the wind. Since this trigger fulfills this trigger instead of the device that actually charges in other than the normal measurement mode, please do not connect the device you want to charge beyond. Also, when checking the charger compatible with MTK-PE, it was explained that a 10 ohm electric resistor should be connected to the output port of the trigger.


As a fast charger compatible with QC 3.0 which is used for checking this time,"Anker PowerCore Speed ​​20000 QC"Use the.


It is said that QC 3.0 charging is possible by charging from this QC 3.0 dedicated port. Insert "COOWOO USB current voltage trigger meter" here and check whether the behavior of QC 3.0 compliant device is really possible.


Insert it. Although it is not actually charged, you can see how much voltage is applied to this trigger. In the initial state it is 5.17V.


Here press the Key button on the top. Then, the voltage from the charger reached 4.96 V. This "COOWOO USB Current Voltage Trigger Meter" will decrease in voltage by 0.2 V for QC 3.0 compatible machine charger each time it is pressed.


If you press it repeatedly, the voltage decreases steadily every 0.2V. Why does this behavior behave, the charger compliant with the QC 3.0 standard has the function of changing the voltage according to the state of charge of the corresponding device and always charging at an appropriate voltage. In other words, if you press the Key button to change the state of the trigger and the voltage from the charger changes accordingly accordingly, the charger can be considered to correspond to QC 3.0. As a result of checking, I was able to confirm that this "Anker PowerCore Speed ​​20000 QC" is firmly compatible with QC 3.0.


In this QC 3.0 discrimination modeLet'snoteWhen checking the USB port of CF - MX3, the voltage does not change even if you press the Key button many times after connecting. You can see that this USB port is not compatible with QC 3.0.


By the way, if you test the iPhone 7 while charging it with iPad charger, it will result like image. It is still powerful, you can see that it can be charged faster than using a charger for the iPhone.


Incidentally, this "COOWOO USB current voltage tester checker fast charge QC 3.0 / QC 2.0 / MTK-PE compatible"COOWOO USB current voltage trigger meter fast charge QC 3.0 / QC 2.0 / MTK-PE compatibleHowever, the Amazon selling price at the time of article writing was 1599 yen for the tester and 2699 yen for the trigger.

Amazon | COOWOO USB current voltage tester checker 3-30V / 0 - 5.1A fast charge QC2.0 / QC3.0 / MTK-PE / iphone 2.4A etc. correspondence | COOWOO | USB goods mail order


Amazon | COOWOO USB current voltage tester checker fast charge QC 3.0 / QC 2.0 / MTK-PE trigger meter 【new generation】 | COOWOO | USB goods mail order