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USB Ammeter Voltmeter Charging Capacity Tester Detector
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USB Ammeter Voltmeter Charging Capacity Tester Detector

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    COD This product supports COD on delivery. Suggestions: Do not place orders with non-COD products, otherwise you will not be able to choose COD payment method.
    Ship between: Dec 05 - Dec 07, Estimated Shipping Time: business days Order Processing Time may require a few days. Once dispatched from warehouse, Shipping (or Delivery) Time depends on the Shipping Method.
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Material: PVC
Line length is about 15 cm
Input voltage: 3V-7V
Voltage resolution: 0.01V
Test current: 0.05A-3.50A
Current resolution: 0.01A
Capacity range: 0-19999mAH
Accuracy: plus or minus 1pct
Line loss: about 0.1 ohm
Test content: battery voltage, current, discharge capacity (10 groups of data in total)

Simultaneous display of voltage and current and mAH data for easy viewing
Can detect mobile power output mAH 
Multiple sets of test data are saved, power-down save function
Does not affect data transmission
Higher precision, the current parameters will not jump
USB male and MicroUSB ports are dual-powered to detect MicroUSB line quality
Current sampling 25 milliohms, less loss
With precision current calibration, current accuracy is higher (calibrated when shipped)


Dimensions and Weight

Product weight: 0.0200 kg
Package weight: 0.0250 kg

Package Contents

Package Contents: 1 x Detector, 1 x OPP Bag

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Customer Reviews

4.67 out of 5
  • 6
  • 3
  • 0
  • 0
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See all 9 reviews Write a Review
  • AurelianT
    Yes (1) Color: Black
    good for also testing capacity, not just voltage and intensity
    I got a good price for this unit, 3.46 USD on flash sale. I chose this device over others because it also measured the capacity, not just volts and amps. It's pretty straight forward: you place this between the two devices where you want to measure the current flow. For measuring capacity, you need to keep this connected the whole time the battery charges (or the powerbank discharges). The little button helps you reset the time and capacity measurement. I have only one concern regarding this device (hence the 4 stars): the display and all the electronics soldered to it rattle inside the casing, because it appears it wasn't fixed in place before the case itself was sealed shut. This may put extra strain on the wires every time I pull out the USB plug and may shorten the lifespan of the entire unit. If the wires going out have a few extra loops inside the casing, then it's all good. Check out my comments section on the youtube video for later updates about how it holds up. This unit had the best price in its range and it is the main reason why I chose it.

    Jan 13,2019

  • IgorM
    Yes (0) Color: White
    Nice tool
    Very nice and useful tool for checking battery capacity, also for amps and volts of your device.
    Like it for small size and compact size, 10 memory info about device you measuring.
    Very portable for everybody who love to play with electronic devices.

    Sep 18,2019

  • Fredy
    Yes (0) Color: White
    Muy buena herramienta para medir el voltaje, en realidad es muy útil para probar los cargadores y los cables. Me ha servido mucho, es de buen tamaño y buena calidad. Muy buena compra, nada malo que agregar....

    Nov 26,2019

  • Giorgio
    Yes (0) Color: White
    USB Ammeter Voltmeter Charging Capacity Tester Detector
    It looks fine now I have possibility to check battery of my mobile or powerbank itis good to check for ease testing it is enough. Delivery is ok 14 days from china to EU
    I hope it will good serve me

    Oct 19,2019

  • Ilay
    Yes (0) Color: Black
    Прибор работает, данные показывает. Можно проверить все свои usb зарядки, и не только, на корректность выдаваемой напруги. Корпус хлипкий, плата внутри болтается, не сильно критично, но не приятно.

    Jan 11,2019

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