Whoah!
Thanks for that! ’oogled, I found at http://batterybro.com/
Grade A: Batteries perform to manufacturer specifications.
Grade B: Batteries under-perform or have other defects.
Grade C: Batteries are used, repackaged, salvaged, or damaged.
Manufacturers bin their batteries. The A bin is reserved and difficult to obtain. Battery Bro only cells Grade A cells. Many online suppliers, especially those in China, sell Grade B cells or lower and do not tell their customers….
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PS — wow. I’m going to start a new thread about this site.
EDIT: here it is, with credit given to folks in this thread:
“Batterybro.com” has a whole lot of info on inspecting cells and …
"Batterybro.com" has a whole lot of info on inspecting cells and detecting fakes
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They seem to be mostly selling batteries for e-cigarette use, I guess that’s the market these days. Good info on inspecting/detecting fakes though.