I don’t think it’s common for consumers to buy 18650 lithium batteries, I mean I do and I know that they are all fake if you order them online… I’m not really understanding the point of this article. Most consumer products come with the batteries inside them already. The idea of somehow banning the import of unsafe batteries seems pretty unrealistic.
A while ago I wrote a simple Python script to do this testing with an airplane/drone flight controller (they have voltage and current sensors onboard) and a constant load. Here are some of the curves I did of my batteries:
What‘s the easiest and hopefully cheapest way to get a setup where I can do theses tests myself?
Is there a charger / discharger with a USB interface that will let me access this data?
Obviously the appearance is not enough and it is easy to counterfeit, but measuring the voltage with a multimeter, the capacity with a smart charger and testing the discharge rate can be very indicative.
Actually the article does not provide any info about that and it just misses what is promises in the title.
Section title. Proceeds to not elaborate on how to spot a counterfeit battery (besides CT scanning). Article seems unfinished and this qualifies as clickbait.
I recently found out something interesting about MC4 connectors for solar panels. It turns out the only legitimate MC4 connectors are manufactured by Stäubli. Every other MC4 connector you see is a clone of the originals, which is dangerous if they are mixed (a male of one vendor, a female of another). Differences in tolerance/fit can create unstable connections which can cause overheating, arcing, even fire. So Stäubli posts pictures so you can try to identify the clones (the easiest giveaway is Stäubli's O-rings are always black). It's such an issue that standards now require you to acquire connectors from one origin, and use the same brand and type. But I think a lot of consumers are buying random solar gear now and just plug in whatever connectors look like they fit together.
As the article was a bit light on actionable info, I'm throwing my favourite review website in the ring. I completely trust it and therefore don't have to do my own testing, as it is often recommended on sites like budgetlightforum.com:
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[ 4.8 ms ] story [ 32.8 ms ] thread“For most of these products, they are sold with part numbers that show an equivalency to a manufacturer’s part number."
Doubt i'd do that, would probably just source from name brands.
https://notes.stavros.io/maker-things/battery-discharge-curv...
And here's the script itself:
https://gitlab.com/stavros/assault-and-battery/
As you can see, it's very easy to tell a new, genuine battery from an old or fake one.
Actually the article does not provide any info about that and it just misses what is promises in the title.
https://www.reddit.com/r/18650masterrace/comments/qp21o8/buy...
wdym?
Section title. Proceeds to not elaborate on how to spot a counterfeit battery (besides CT scanning). Article seems unfinished and this qualifies as clickbait.
How is it better than a git repository? Or even an Excel spreadsheet?
lygte-info.dk/