Critics say solid-state batteries are perpetually five years away. At the very least, that timeline has dropped to two years—especially with more companies dabbling in the technology. Stellantis is the latest; The company says it will install solid-state batteries from its partner Factorial in a test fleet of Dodge Charger Daytona EVs in 2026. It's one of the first times the technology has been used publicly in automobiles, even if they're just prototypes.
