Skepticism grows around Donut Lab’s “impossible” battery as experts debate capacitor-like behavior and scarce independent ...

The Verge TS Pro, equipped with a solid-state battery, was plugged in at a fast-charging station. Here's how it performed.

Donut Lab’s fast-charge demo beat many e-motorcycles, but 400 Wh/kg and 100,000-cycle claims remain unverified after the ...

Donut Lab's third independent VTT test confirms its solid-state battery retains 97.7% capacity after 240 hours idle. Energy ...

The Finnish firm claims it has beaten the world’s largest carmakers and battery giants to commercializing solid-state cells ...

Finnish technology company Donut Lab has published the results of a special fast-charging test. In the fourth round of ...

Basically, VTT hooked up Donut Lab’s to a battery tester and left it idle for 10 days, while measuring the voltage every 10 seconds. According to the results, the cell demonstrated high stability, ...

Donut Lab surprised everyone when it announced at CES 2026 that it's ready to ship the first commercial solid-state battery. The startup made incredible claims, including about longevity (100,000 ...

A lot of battery-powered products, from phones to cars, promise fast charging up to 80% in mere minutes. What's different ...

Donut Lab, a Finnish solid-state battery maker, claims its cells retained 97.7% of their charge after sitting idle for 10 ...

Finnish startup Donut Lab has just released the third independent test of its solid-state ...