Briefing: Donut Lab’s solid-state battery could barely hold a charge after getting damaged

Donut Lab's solid-state battery has undergone various independent tests aimed at assessing its durability and performance. However, results indicate that the battery struggles to maintain charge after sustaining damage.

The testing conducted on March 23, 2026, included evaluations under conditions such as speed charging and exposure to extreme heat. These tests are part of Donut Lab's broader effort to validate the viability of its battery technology.

The implications of these findings raise concerns about the practical applications of solid-state batteries, particularly in terms of reliability and longevity in real-world scenarios.