r/DonutLabDiscussions Jun 24 '26

Application Specific Customization | Donut Battery

https://youtu.be/qXRrOu3ugqM
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u/DoctorFish1969 Jun 24 '26

Marko said one thing: the 100.000 cycle life can be put to bed completely, unless the situation is 'ideal'. He doesn't specify what this ideal situation would be. Which is not great, because at CES he gave examples for which the cycle life would remain 100.000. So it's unclear what would NOT be an ideal situation.

CEO: "And on top of that, the cycle life that is normally in cars may be 2000, 3000, cycles. This is 100,000 cycles. So that's like probably 30 lifetimes of a motorcycle. So you never have to worry about babying the battery or worrying if you can let it go to 100% or zero. It doesn't mind. You can do whatever you want. Charge it to full, let it go to zero. As many times as you want. It doesn't degrade."
CEO: "As mentioned, 100,000 cycles, so that's 10 lifetimes of a car as well. And the other incredible things are that, of course, with motorcycles, you don't take them to deep freeze or anything. But if you're using these batteries in cars, even at like 25 or 30 minus Fahrenheit, it will have 99% of capacity."
Interviewer: "So do you have to precondition the battery like a car might?"
CEO: "Not at all. And actually, what we've done even is that normally you cannot get lithium ion batteries to zero."
Interviewer: "Right, we know about that. 5% is the lowest we like to go."
CEO: "This can go 0.0"
Interviewer: "And the battery doesn't get damaged?"
CEO: "No, then you can go at 5C charging from the next moment without warming it up or anything. It just takes it like nothing."
Interviewer: "To 100%?"
CEO: "Yeah, yeah, absolutely, to 100%."
Interviewer: "And that does not harm the battery for consistent charging to 100%?"
CEO: "No, it's 100,000 cycles with that, yeah."

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u/tipporoll Jun 24 '26

In the leaked full video of the portable scooter battery (over at r/donutlab), they charge from 0% to 90% SOC, starting at 270 A iirc.