Practical LCD Display USB Voltage and Current Detector with USB Load Resistance Battery Capacity Tester for Phone Mobile Power Bank

- WHITE 105207901

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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.

Main Features:
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)



Color: White
Material: Plastic and Electronic Component

Product Details



Product weight: 0.0390 kg
Package weight: 0.1000 kg
Package size (L x W x H): 11.00 x 11.00 x 3.00 cm / 4.33 x 4.33 x 1.18 inches

Package Contents

Package Contents: 1 x Voltage and Current Detector, 1 x USB Load

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.

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Customer Reviews

4.9 goods.goods_customer
  • Ivan
    A little manual for USB tester
    There are a lot of reviews about this well known USB tester here, so i just want to write a little hint about using this device. 1. To switch the memory slot, press the button twise . LCD display will start blinking. Then press ones to change slot. Press twise again to keep a choise. 2. Press and hold button for a few seconds. By this way, your will switch to next store bank and will reset its data. 3. LCD screen will flash if voltage is too high or too low (you will see updown alert arrow near the voltage value). 4. Be careful, the resistor module heats up to the 100 Deg C less than two minutes. 1. Чтобы переключить слот памяти, нажмите кнопку дважды. Экран замигает, нажмите один раз, чтобы переключить слот.Нажмите дважды еще раз, чтобы сохранить выбор. 2. Зажмите кнопку на несколько секунд, чтобы переключиться на следующий слот памяти, обнулив его значения. 3. Дисплей мигает, если входное напряжение слишком маленькое, либо слишком большое (на экране замигает стрелка). 4. Резистор нагревается до 100 град.С примерно за минуту.
    A little overpriced. Non switchable resistor module.

    Jul 22,2015 19:03:13


  • pasha7
    USB тестер
    Позволяет тестировать зарядные устройства и любые кабели с USB и microUSB в диапазонах 3-7V, 50-3500 mA и ёмкость0-19999 mAh. Дисплей с подсветкой, имеются 9 ячеек памяти. Нагрузочный резистор на 2Ah в комплекте (очень сильно греется при работе). Allows testing chargers and any cables with USB and microUSB ranges 3-7V, 50-3500 mA and ёmkost0-19999 mAh. Backlit display, there are 9 memory locations. Terminating resistor on 2Ah included (gets very hot during operation).
    Минимальный диапазон измерений от 50mA, резистор без переключателя 1-2Ah.Отсутствует защитный чехол для резистора. The minimum measuring range of 50mA, the resistor switch 1-2Ah.Otsutstvuet without a protective cover for the resistor.

    Sep 01,2015 13:56:56


  • halb
    Самый народный надежный тестер!
    Пользуюсь им уже более 2.5 лет, за это время выручал меня много раз.. и кабель протестировать.. и зарядку.. и аккумы на телефонах с его помощью много хлама отсортировал.. таскаю все время с собой. Тестировал до 3 Ампер - все норм. + есть mini-usb вход, много выдаваемой информации (емкость, вольтаж, ток), память на 10 устройств. + есть нагрузочные резисторы. - нету (ну разве что на резисторах переключателя нет на 1А/2A (идет на 1А)
    Отличный проверенный народный тестер!

    May 23,2016 17:55:47


  • Evgeniy
    LCD Display
    Отличная штука.Показывает ток заряда.ток потребления,напряжение.Сразу отбраковал "левые" шнурки.Думаю,что не ошибусь,если разделю мнение предыдущих отзовиков.что этот мини-тестер может претендовать на звание "народного"

    Jun 15,2018 15:07:10


  • borem
    хороший USB-microUSB тестер
    хороший USB-microUSB тестер с возможностью узнать работоспособность ваших девайсов, пропускную силу тока USB кабелей, и т.д. Отбраковал две авто зарядки (макс. 400mah) одну на 220 и один USB шнурок. Google translator A good USB-microUSB tester with the ability to find out the efficiency of your devices, the current capacity of USB cables, etc. I rejected two auto charging (max 400mah), one for 220 and one USB lanyard.
    мог бы стоить дешевле, как написали ранее - нагрузка греется довольно сильно, для меня маловат дисплей(мелкие цифры, буквы), нужна лупа Google translator Could be cheaper, As they wrote earlier - the load is heated quite strongly, For me the display is too small (small numbers, letters), I need a magnifying glass

    Jun 25,2017 12:50:25


  • zebulon007
    Practical LCD Display USB Voltage and Current Detector
    Excellent products, good quality, works great. Fast shipping, low price, very useful to test my usb cables, batteries and checking 5v charges. I recommend it!
    Nothing. Everything is ok! Thank you. - - - - - - - - - - - - - - - - - - - - - - -

    Oct 11,2017 02:28:40


  • aqadir2151
    gearbest is all time best
    Very usefull product for home use,specially for day today life as we all are using tonnes of electronic devices like mobile phones powerbanks routers...and related to all kind of chargers

    Apr 30,2015 23:30:14


  • Alexandr Shejko
    Product review
    Goods of good quality.It packaged well, when forwarding the original packaging. Sent and delivered quickly. If you need a more detailed review of product - contact me.
    Goods of good quality.It packaged well, when forwarding the original packaging. Sent and delivered quickly. If you need a more detailed review of product - contact me.

    Jul 23,2015 14:49:26


  • Julio Cesar
    - You can measure how much power your devices consume. - its precision is amazing. - if you have a power bank it's very useful because you can see how much mAh has been consumed while you're using it.
    Maybe the quality of the plastic case, but everything is ok

    Jul 08,2015 12:05:14


  • Arczi
    Tester USB
    Robi to co ma robić to małe urządzenie, wyniki podaje dokładne jak za tą cenę. Wykonanie nie jest idealne, ale czego spodziewać się za taką cenę. :) To wyjście USB mogłoby być lepiej osadzone, żeby nie latało tak jak ma to miejsce teraz, ogólnie to na plus. :)
    Słabo osadzone wyjście na kabel USB poza tym to nie ma się do czego przyczepić.

    Nov 02,2017 00:56:56


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