Stellantis doubles down on Factorial Energy with deeper battery tech ties

Stellantis has confirmed its ongoing investment in battery startup Factorial Energy. The carmaker holds a 9.5% stake in the company, currently valued at around $126 million. A recent SEC filing reveals deeper operational ties between the two firms. Stellantis first committed €75 million to Factorial in 2021. Its current holdings consist of about 8.67 million shares, split between Stellantis Ventures and Stellantis Europe. The investment reflects confidence in Factorial’s battery technology, which has shown promising results in testing.

Laboratory trials recorded an energy density of 375 Wh/kg for Factorial’s batteries. Charging times reached roughly 18 minutes to go from 15% to 80%. Road testing has now begun, with a prototype Dodge Charger Daytona fitted with Factorial’s cells.

Jon Nelson, CEO of Stellantis Financial Services, has joined Factorial’s board. This move signals a strategic partnership beyond financial backing. The company remains open to increasing its stake, calling Factorial a 'compelling investment opportunity'.

The SEC disclosed these details on 19 June 2026. Stellantis shares have fallen nearly 43% so far this year, with a 3.7% drop following recent negative news from BMW. Stellantis continues to back Factorial despite its own stock struggles. The investment and board appointment highlight long-term interest in the startup’s battery advancements. Road testing marks a key step toward potential commercial use of the technology.