How to Spot a Counterfeit Lithium-Ion Battery
4 comments
·November 22, 2025sparrish
butvacuum
Looks like it was half written.
But, step #1 is pull up it's spec sheet and replicate their capacity testing method. At least for single cells. For packs there's not much you can do but buy from trusted places- manufacturer, bhphoto (for cameras).
18650batterystore has always been good to me, at least for the 300 Samsung 25R's I bought.
pulvinar
"One test, called a destructive physical analysis, involved dismantling small cylindrical batteries. This immediately revealed differences in quality."
FridayoLeary
Hezbolla would also like to know. Seriously though, batteries make me nervous, they can seemingly go up in flames anytime, though it has only happened to one person i know so far. The only trouble i've ever had is old AAAs eating up some unfortunate alarm clocks.
From the article it sounds like it's practically impossible to tell if your battery is dodgy.
I read the article... did I miss it? I still have no idea how to spot a counterfeit lith-ion battery without a CT scanner.