Donut Lab released the third independent test of its controversial solid-state battery, this time trying to prove it's not a ...

Analysis reviews Donut Labs solid-state battery claims, including 400 Wh/kg energy density and fast charging, and highlights missing independent validation.

Donut Lab's solid-state battery pack charged from 10-80% in 12 minutes at over 100 kW in a Verge TS Pro motorcycle, the first pack-level test of the controversial tech.

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

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

The startup's third test evaluates whether its solid-state battery is actually a supercapacitor. Here's what the results say.

Donut Lab has published results from its fourth battery test with Verge Motorcycles, demonstrating ...

During CES 2026, Donut Lab claimed it had built a solid-state battery that promised unprecedented energy density, longevity, and charging performance. Skeptics demolished Donut Lab's claims, but the ...

Donut Lab unveiled tests this week demonstrating its battery's charging capability. Experts still have big questions—about cycle life and performance at the pack level. Donut Lab is releasing more ...

The battery world is hardly lacking in ambition, but it remains controlled by a tight circle of Chinese and Korean heavyweights. When Finnish startup Donut Lab claimed earlier this year that it had ...

The Donut Lab battery announced at CES may be a real energy storage device based on pulling together some almost obscure details. The team of people involved on the research side, led by an Indian PhD ...