alt Hacker News> It's incredibly suspect that in a battery capacity test, Donut did not have VTT verify cell weight or dimension.
The report does include a few photos, and the battery does look pretty small on them? So I don't think there's foul play there.
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WarmWash • yesterday at 7:39 PM
Photos and "looks pretty small" are not technical parameters that you pay tens of thousands for a lab to certify.
There are a bunch of cutting edge cell technologies out there right now with gangbusters specs but have some kind of fatal flaw.
If Donut was serious they would put the full specs of the tested cell in each report, so people could have higher confidence that each tested cell is the same chemistry. VTT would have no issue weighing and measuring each cell before and after testing.
I have seen so much engineering scams over the years and this is precisely the thing that they all do.
It reminds me of E-cat. Anyone remembers cold fusion? They had same modus operandi. Lots of revolutionary claims but testing was so contrived and limited and lots of conditions that in the end no one was allowed to truly confirm it. .
This repeats the exact steps of that purported miraculous energy device.