Yep, it’s fast: Donut Lab’s solid-state battery gets its first test result

Published: (February 23, 2026 at 10:54 AM EST)
1 min read
Source: The Verge

Source: The Verge

Donut Lab’s Independent Battery Test

Since announcing earlier this year that it was on the cusp of a major battery breakthrough, Finnish startup Donut Lab has faced many questions and skepticism about its production‑ready solid‑state battery. Could the company really make a fast‑charging battery at scale while avoiding the theoretical production headaches that have stymied past efforts? Today, Donut Lab sought to dispel some doubts with the release of the first independent test of its battery, evaluating its charging speed and the “thermal behavior” of its pack.

Test Overview

  • Conducted by the state‑owned VTT Technical Research Centre of Finland.
  • Focused on charging speed and thermal behavior of the battery pack.
  • Results were described as promising.

Read the full story at The Verge

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