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Fnirsi HRM-10 battery internal resistance tester - first look (makertube.net)
submitted 2 months ago by to c/pileofstuff@makertube.net
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Banggood sent me this Fnirsi HRM-10 battery tester to take a look at.

Among other uses, it should come in very handy for sorting out the salvaged lithium batteries I have been collecting.

FNIRSI HRM-10 18650 Battery Voltage Internal Resistance Tester -- https://ban.ggood.vip/1ngsw (some people have reported problems with that link - if it doesn't work try: https://pileofstuff.ca/r/0n48q)

Coupon code: BGb2441e

Banggood 20th Anniversary Sale --https://ban.ggood.vip/1niU8

Here's the chart of typical resistance values I showed in the video: https://www.hanery.com/blog/lipo-battery-internal-resistance/

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Some other links to products may be affiliate links

#ElectronicsCreators

This isn't the only way to do it. It's probably not the best way to do it. But it's how I did it.

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[–] 1 point 2 months ago (1 child)

with that many batteries in your collection, how do you make sure that none of them become unstable due to old age/damage over time? Do you visually inspect them for bulging every now and then, or do you not bother at all?

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