KCX - 045 LCD USB Voltage Current Detector Battery Capacity Tester for Phone Mobile Power Bank

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>br / >A Must-have Device to Know Current and Voltage!
Wait to know why your USB charging is slow and take forever time? This cute device is what exactly you need - To show you the USB charging current and voltage instantly. KCX - 045 Current and Voltage Detecor is an excellent testing and troubleshooting tool to check the performance of USB power sources on your computer, cellphone, or mobile power supply. It adopts new generation integrated circuit board with precision reference source, providing accurate measuring and stable performance. Made of high-grade material, it also resists interference and heat and thus is reliable and durable. Featuring plug-and-play design, it is easy to use. Don't hesitate to get one! You won't regret it!

Adopt intelligent USB IC texting technology, quickly show the charging status
It can test current and voltage of phone, mobile power bank etc.
With USB interface, 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

1. Input Voltage: 3 - 7V
2. Input Current: 50mA - 3500mA
3. Capacity: 0 - 19999mAh
4. LCD show voltage and current simultaneously
5. Save data each time power off
6. High precise current calibration function
7. High and low voltage alarm


Product Details

Model: KCX - 45
Design: Professional
Feature: Portable
Interface: USB2.0
Product weight: 0.0230 kg
Package weight: 0.0700 kg
Product size (L x W x H): 8.00 x 2.70 x 1.50 cm / 3.15 x 1.06 x 0.59 inches
Package size (L x W x H): 9.00 x 4.00 x 3.00 cm / 3.54 x 1.57 x 1.18 inches
Package Contents: 1 x Current Voltage Meter

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Customer Reviews

4.87 out of 5
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  • Jānis Baumanis
    Must have when looking for cause of USB power issues
    Small and cheap but unbelievably useful gadget when one is trying to determine why his phone or music player is charging so slow. It also has some other useful capabilities such as USB power consumption monitor and power bank capacity meter. Detector itself is very well built, precise and has easy to see numbers on screen.

    In my case the usefulness of KCX-045 was proven straight out of the box. The USB cable, which I blamed before, was not the real cause of phone charging slowdown. The real culprit was USB ports in computer which was able to give only 0.5A charging current. Switched to charging from power adapter of WSX / MX X6A battery charger (in picture) and now phone is charging really fast.
    - Numbers on display become translucent when looking to screen in step angle from above.
    - Blocks second USB port when plugged in one of socket of 2 USB ports.

    Jun 14,2016

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  • Lubomir Kalchev
    As Good as It Gets
    1. Extremely accurate device.
    2. There is a deviation of the measurement of 1-2% only if you reach the end of its capabilities ( 3 - 3.5A input)
    3. As far as you use it typical occasions (350mA - 2000mA) it is dead on sharp !
    4. There is a reason being that accurate is the "HOLTEK LCD controller" on the bottom of the board.The same microcontroller was partially spoiled by the cable in "KCX - 017". But in "KCX - 045" there is nothing to mess with good job of "HOLTEK LCD controller" !
    1. It's wasn't that cheap, when I bough it :-)
    2. The package is just a plastic bag
    3. It's a Must Have Scenario !

    Jun 13,2016

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  • carpath578
    USB voltage/current/battery capacity tester...
    wow! all these features in a so smart, simple to use device is very usefull...you can check any USB port with it, and believe me, checking USB ports before use (at least on first use) is important because you can really burn your phone and even your house with a bad USB charger, and don't believe you will never have a bad charger, you can find them everywhere..
    Conclusion: very usefull, well made, quality materials & finish, simple to use, full of capabilities, really nice display, excellent price!

    Jun 22,2017

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  • Maciej
    USB Voltage Tester from GearBest.com
    For that kind of product this one here is like Porsche.
    If you want to check the current charging or check your charger (is still good enough?) this voltage tester is best to do that.
    Quality is awesome. LED screen is small but very convenient. Numbers and letters are legible.
    Very useful tool. I recommend.
    Thanks GB for a quick delivered.
    Nothing. None. Nada.

    May 19,2016

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  • Mike
    Great little thing
    Seems very precise. measures all relevant charging parameters.
    Great Build quality, very durable.
    Instruction for use:
    1. Short button press, change between mah, W and Time values
    2. Long button press, clear memory and go to next memory place.
    3. 2 short presses, blink mode for memory reading, one short press next memory without deleting, 2 short presses stay in that memory.

    Feb 26,2016

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  • Valery
    USB Tester
    This device shows your USB output voltage and charge rate when used in-line with a charger.
    The best part is that it will also show the capacity and charge status of your battery.
    Absolutely essential for anyone who needs to store batteries at a nominal charge. Recommended.

    Jul 22,2015

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  • Anton
    Very Good!
    KCX-045 it's an excellent tester. Indicates: voltage, amperage, capacity and time of the charging. The quality of the tester is really high. Tester was delivered without any defects. The time of delivery to Ukraine is 18 days.

    Apr 07,2016

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  • MuslimGamer
    Asalamu Aleykum
    Please check full review on my youtube channel:
    KCX USB Voltage Current Detector Review by TechUtopia
    -3 MODES
    -LCD display
    no rotation font/number

    Jun 23,2016

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  • Rafael
    very good to know the frequency that some device is consuming. very useful . thank you for the gearbest confidence. I will buy again and do business with you. so far for me and the best online print. even when there is a problem with orders, are always available to solve.

    Mar 14,2018

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  • marianos
    KCX - 045 LCD USB Voltage Current Detector Battery Capacity Tester
    *usefull to test your USB voltage/current charging characteristics
    *usefull charging diagnosis tool
    *easy readable display
    *fast shipping and delivery

    Aug 06,2016

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