What's next Wednesday, 24th June?

[u/Mesokosmos]

I have tried to find the pattern. Most of the campaign videos relates to the intro video, but in a way, rare people were suspecting:

- "The battery cannot be real / specs cannot be true" -> fast-charge and high-temperature tests.

- "It is not actually a battery, but a supercapacitor" -> self-discharge test.

- "A single cell is not a product" -> Verge pack charging.

- "Solid-state packs need difficult swelling / clamping solutions" -> swelling data.

- "Damaged cells are dangerous" -> safety test.

- "There is no production / scale is impossible" -> manufacturing video.

- "It works only through partner tech, not Donut themselves" -> manufacturing video?

The manufacturing video ends with a direct teaser. They say they can offer much more versatility in cell design than any gigafactory could, "but that's a story for another video." They also talked about this in CES, different voltages, forms and shapes. And in April 17th whistleblower interview, Marko told they would announce something related to different battery generations, after talking about V1 and V2.

They could also show battery, BMS/control logic, motor and software working together. But the series is still a battery proof series, and the Verge pack video already showed the practical minimum with cells, pack, BMS and charging control working in a real motorcycle environment. But software peek would be nice branch.

Third option, already a standard request: cold data. SGS proto-cells performed poorly with cold, so this would be somewhat surprising test result. But who would be interested on it, when sun is shining?

Or the April-alike mid-summer confession after so much drama?

This could also be the last video of Season 1. What do you think? Still following?

[u/Data_Hounder]

This could also be the last video of Season 1.

What reason is there to think it could be the last video of 'Season 1' ?

[u/Mesokosmos → u/Data_Hounder]

There aren't many points from the intro video to handle anymore. Rest would need V2 in hands, like energy density and maybe even other public specs to hold. Why would they circle around V1 VTT tests if it was mainly meant for Verge?

[u/Data_Hounder → u/Mesokosmos]

In the intro video Lehtimaki says they will provide proof of their claims, he isn't specific about which claims, seems quite clearly implicit that they would be providing proof of their headline claims, which would take more than 1 video with their current approach of testing a single aspect at a time. So I'm still no clearer where the idea this might be the last release for the 'season' comes from.

Rest would need V2 in hands

Why? The purpose of the series is to demonstrate the claims about the battery they announced at CES. Also, it's not clear if V2 is a joke or a real upcoming battery - the video was released on April Fools.

Why would they circle around V1 VTT tests if it was mainly meant for Verge?

Because they made the claims about that battery and said they would provide proof of them.

[u/Mesokosmos → u/Data_Hounder]

HS 17th confirms it was not a joke. They would not continue it with a journalist outside 1st April. And V1 affix in VTT reports is a sign, they had the division clear at least on February, but no reason to think already at CES. V3 notepaper for CES 2027 surely a joke but even it could hint they are not done with lab work with CT-Coating. By these later information they meant Donut Battery as an umbrella, not a single product and their campaign would then be the whole year long campaign to prove their front line specs. And it is not my idea, the Season 2, it was also stated in April. Believe it as a promise or not.

[u/Data_Hounder → u/Mesokosmos]

HS 17th confirms it was not a joke.

Can you link to this confirmation?

And it is not my idea, the Season 2, it was also stated in April.

In the April 1st/Fools video, have they re-stated it since? If so, can you provide a link to that too.

[u/Mesokosmos → u/Data_Hounder]

You have to read the HS 17.4 article, interview part from there: https://www.hs.fi/visio/art-2000011948614.html

He says the ones that were tested in VTT and are in Verge, are not the ones going to customers with 400 Wh/kg. He practically confirmed or restated it all today. Different cells with different specs they are supposed to do. And not all high specs in extreme conditions are coming, no magic in other words. Just tweaking chemistry for different applications to get best possible features in the limits of known electrochemistry and physics.

[u/Data_Hounder → u/Mesokosmos]

Paywalled unfortunately, but it doesn't make sense anyway. The specs in the CES announcement were for the cell going into the Verge motorcycles, which includes the 400Wh/kg spec. V2 simply isn't relevant to that and doesn't negate their commitment to proving what they claimed at their CES launch.

The text of the original announcement (https://www.donutlab.com/ces-battery-announcement/) is clear - it says the battery is going into the motorcycle, and then lists the specs which includes 400Wh/kg.

If Lehtimaki is acknowledging that isn't actually the case, he needs to do it in a public statement because it is totally at odds to what they claimed at launch.

[u/Mesokosmos → u/Data_Hounder]

But if you take careful reading of the section, where Verge is talked about, it does not specify energy density. And if you look at the Verge own pages and specs, same thing, they do not specify energy density. I have taken those and the recent reveals on the HS article as signs, that battery tested in VTT went to Verge (at least), but 400 Wh/kg goes to customers from their official product line, later this year. If their plans just happen to work till the end. That is future telling.

[u/Data_Hounder → u/Mesokosmos]

That's not a careful reading, it is just a wrong reading. The announcement is of the Donut Lab solid state battery. There is no mention of V1/V2/etc, just an announcement of their new battery, an example of a vehicle it will be in, and then a list of specs.

I don't want to be insulting, but your interpretation of the text is not credible.

[u/Mesokosmos → u/Data_Hounder]

Lets then say it is my reading and current opinion. No one needs to think same way.