Donut Lab Solid State Battery Pack Charges 10–50% in 5 Minutes in Motorcycle Test

Donut Lab and Verge Motorcycles have unveiled the findings from a fast-charging evaluation that puts Donut Lab’s solid-state battery technology to the test at the pack level. Conducted as part of a research initiative, the trial explored how multiple cells perform together inside an air-cooled 18 kWh battery pack designed specifically for the Verge TS Pro electric motorcycle. This marks the first time the battery’s capabilities have been publicly shown in a production vehicle.

According to Ville Piippo, CTO of Donut Lab, the high energy density of the solid-state cells opens the door to flexible pack architectures and standout performance, especially in tight spaces like motorcycles. Piippo highlights that manufacturers can opt for packs with different capacities that fit the same physical footprint—and even the smallest options deliver meaningful energy storage.

During the charging test, the motorcycle’s battery jumped from 10 percent to 50 percent in five minutes, thanks to a sustained peak power input exceeding 100 kW (roughly a 5C rate) via a public fast charger, starting from an initial pack temperature around 20 °C. The results showed a 10–70 percent charge in just over nine minutes and 80 percent in 12 minutes—three times faster than Verge’s earlier battery. Verge Motorcycles expects even better performance following further pack-level refinements.

Tuomo Lehtimäki, CEO of Verge Motorcycles, notes that integrating Donut Lab’s ultra-fast charging cells into the air-cooled TS Pro reflects the company’s commitment to an elevated user experience. The standard 18 kWh pack used in the trial will eventually be joined by an extended-range version with roughly 67 percent more energy capacity.