Overview
- VTT’s second report shows a 94 Wh, 26 Ah pouch cell delivered about 110.5% of room‑temperature capacity at 80°C (1C/24 A) and 107.1% at 100°C (0.5C/12 A), then recharged normally.
- After the 100°C run, the pouch lost its vacuum, a sign of possible outgassing or seal issues, and an outside battery scientist flagged apparent swelling compared with prior images.
- A prior VTT test verified ultra‑fast charging to 80% in roughly 4.5 minutes at 11C, though earlier lab footage suggested substantial heat that likely necessitates robust cooling at high rates.
- Key headline claims remain unverified by the published data, including 400 Wh/kg energy density (no cell mass disclosed), 100,000‑cycle longevity, and cold‑temperature performance at −30°C.
- Donut Lab continues to release weekly third‑party results under its “I Donut Believe” campaign, as parent customer Verge Motorcycles maintains a market arrival target later in 2026.