From EVs To Attack Drones: Battery Factory Conversion Echoes WWII Industrial Mobilization

Amprius Technologies has secured a $75 million US Department of War grant to convert an EV battery production line into advanced batteries for Group 1, 2, and 3 military drones. The award marks another example of civilian manufacturing capacity being converted toward defense production as the US expands its drone industrial base. 

EV blog Electrek reports: 

Amprius Technologies received a $15 million order for its innovative lithium-ion cells from an anonymous customer back in 2024, all the company would say was that the buyer was a, "leading Unmanned Aircraft System manufacturer." 

We still don't know who that mysterious customer might have been, but we know this: there's enough demand for Amprius' energy-dense batteries that DoW is willing to spend $75 million to draft a civilian factory originally designed to build zero-emission electric cars into drone duty.

The conversion reflects a shift in capital toward defense demand. As EV demand softens, underused battery production lines offer a way to expand military drone output without building new factories from the ground up. For the DoW, repurposing existing facilities could shorten the path to ramp up drone production. This approach echoes World War II industrial mobilization: redirecting civilian manufacturing capacity to meet military needs.

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