Ecoblox Taps Rimac EV Batteries for Modular AI Data Centers

Modular data center builder Ecoblox has signed a Joint Development Agreement with Croatian EV manufacturer Rimac to build high-density modular data centers running on automotive battery technology. The first unit goes live in November at Rimac's campus in Kerestinec, Croatia — the first data center deployment ever to use Rimac's UNI battery modules.

What does the partnership actually deliver?

The deal splits responsibilities cleanly. Rimac Technology brings its UNI battery modules, battery management system, and power electronics. Ecoblox contributes the AI infrastructure, the modular data center architecture and design, and the hardware/software system integration to tie it all together.

For operators, the practical gain is backup power. The UNI modules are claimed to enable longer continuous backup for critical computing hardware than conventional setups, and Rimac's battery management system hands Ecoblox real-time monitoring and control over each modular unit. If you've been sizing UPS capacity around short bridge-over windows, automotive-scale energy storage changes that math.

Why automotive batteries in a data center?

Rimac designed the UNI modules for automotive, energy storage, marine, off-highway, commercial, and industrial use — sectors that punish hardware harder than a white space typically does. This deployment marks their first appearance in data center infrastructure.

"Our battery and power electronics technologies have been developed and industrialized to meet some of the most demanding requirements in the automotive industry," said Nurdin Pitarevic, CEO of Rimac Technology. "The same capabilities are increasingly relevant to high-power AI infrastructure, where power density, thermal management, safety, and reliability are critical."

In other words: an EV drivetrain already solves problems that AI clusters are now hitting — dense power delivery, heat, and safety in a compact envelope.

What changes for cloud and enterprise buyers?

Doug Makishima, CEO at Ecoblox, frames the integration as a deployment-speed play. "Partnering with Rimac Technology allows us to redefine high-density power delivery for the next generation of AI compute," he said. "By integrating automotive-grade energy storage and power electronics directly into our modular data center architecture, we are removing grid constraints and enabling cloud providers and enterprise customers to deploy scalable, power-resilient AI clusters faster and more efficiently than ever before."

The grid-constraint point matters for anyone who's waited on a utility interconnect. If the battery stack carries more of the load, siting flexibility improves and projects stop queuing behind grid upgrades.

Who is Ecoblox?

The company is headquartered in Dubai, UAE, and sells a range of products:

• Rack-level solutions
• 20–40 ft modular data centers
• Custom module data centers

All are built for high-density workloads and certified compatible with Nvidia and AMD GPUs. Ecoblox claims deployment in under eight months — roughly the length of two business quarters, start to compute.

Pitarevic added: "Together with Ecoblox, we are applying these technologies to a new high-power application and bringing automotive-grade technology to AI data centers."

The November handover at Kerestinec will be the proof point. Watch whether the UNI modules' backup duration and the BMS telemetry hold up under real AI training loads — that data will decide how fast automotive-grade power spreads through the modular data center market.