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Blog Battery Capacity Measurement, Identify a Fake Battery, [Lithium-NiMH-NiCd][UID=d432]
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  • Author Author: Hesam.M
  • Date Created: 8 Oct 2019 6:00 PM Date Created
  • Views 1538 views
  • Likes 13 likes
  • Comments 8 comments
  • lithium battery capacity measurement
  • battery capacity measurement
  • battery capacity measurement arduino
  • fake lithium battery capacity measurement
  • arduino battery lithium measurement
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Battery Capacity Measurement, Identify a Fake Battery, [Lithium-NiMH-NiCd][UID=d432]

Hesam.M
Hesam.M
8 Oct 2019

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Features:

Identify a fake Lithium-Ion/Lithium-Polymer/NiCd/NiMH battery

Adjustable constant current load (can also be modified by the user)

Capable of measuring the capacity of almost any kind of battery (below 5V)

Easy to solder, build, and use, even for beginners (all components are Dip)

An LCD user interface

 

Specifications:

Board Supply: 7V to 9V(Max)

Battery Input: 0-5V(max) – no reverse polarity

Constant Current Load: 37mA to 540mA(max) – 16 Steps – can be modified by the user

 

The true measurement of a battery’s capacity is essential for many scenarios. A capacity measurement device can solve the problem of spotting fake batteries as well. Nowadays fake Lithium and NiMH batteries are everywhere which don’t handle their advertised capacities. Sometimes it is difficult to distinguish between a real and a fake battery. This problem exists in the spare batteries market, such as cell phone batteries. Furthermore, in many scenarios, it is essential to determine the capacity of a second-hand battery (for instance a laptop battery). In this article, we will learn to build a battery capacity measurement circuit using the famous Arduino-Nano board. I’ve designed the PCB board for dip components. So even beginners can solder and use the device.

 

References

Article Source: https://www.pcbway.com/blog/technology/Battery_capacity_measurement_using_Arduino.html

[1]: https://www.onsemi.com/pub/Collateral/LM358-D.PDF

[2]: https://componentsearchengine.com/part.php?partID=671517

[3]: https://componentsearchengine.com/part.php?partID=617283

[4]: https://componentsearchengine.com/part.php?partID=368895

[5]: https://www.samacsys.com/altium-designer-library-instructions

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Top Comments

  • Hesam.M
    Hesam.M over 5 years ago in reply to dubbie +5
    Thank you That's actually the reason I did not program for higher than 500mA, which is quite fair for a battery which claims 8,800mA :-) this problem also exists within cell-phone spare batteries which…
  • dubbie
    dubbie over 5 years ago +4
    This is an interesting concept. I've not heard of fake batteries before. I know about batteries having different capacities and how difficult it is to obtain a realistic understanding of what they can…
  • neilk
    neilk over 5 years ago +4
    A fascinating article and excellent video. I was aware that not all brands of Lithium batteries deliver their claimed capacity, but this piece of kit to measure capacity is really useful. I will add it…
  • Hesam.M
    Hesam.M over 5 years ago in reply to dougw

    Thank you

     

    Yeah, you correctly mentioned another annoying problem, spare camera batteries, same as cell-phone batteries suffer from these issues.

    Build this circuit and test those batteries and see what is their true capacity.

     

     

     

     

     

     

     

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  • dougw
    dougw over 5 years ago

    Nice work. I definitely have some batteries that do not perform as advertised. The 3rd party spare Lithium batteries I bought for my camera are the worst offenders. Their capacity is rated as higher than the original battery, but in reality they only last about 20% as long. In addition, they self discharge over the course of a few days - unlike the original which keeps its charge indefinitely.

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  • Hesam.M
    Hesam.M over 5 years ago in reply to three-phase

    You're welcome

     

     

     

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  • three-phase
    three-phase over 5 years ago

    Thanks for sharing this, I could do with a useful little project to get me started with Arduino.

     

    Kind regards.

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  • Hesam.M
    Hesam.M over 5 years ago in reply to neilk

    You're welcome, Neil.

     

    Yes, for every electronic enthusiast is a must, not just for spotting the fake batteries, but for revealing the true remained capacity of any battery.

     

     

     

     

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