Donut Lab, the Finnish solid-state battery startup that has faced intense skepticism since its CES 2026 debut, released its first pack-level charging test results today. The 18 kWh battery pack sustained over 100 kW of charging power — a 5C rate — for five minutes straight inside a Verge TS Pro electric motorcycle.
The test marks the first time Donut Lab has demonstrated its technology beyond individual cells, moving to a full battery pack in what the company calls “a real vehicle environment.”
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