Photo: a boat under way seen from above, wake spreading across open water
About REX

A Dutch product company for battery integration.

REX started on the water. Building the REX Boat S1 taught us how hard it is to find a battery system in Europe that does what its datasheet says, batch after batch. So we built our own: qualified cells bought at scale, one controlled specification, final assembly in Europe. Customers began asking for the same approach in other products. REX now integrates automotive-grade battery systems for marine, portable and stationary energy, and medical and service robotics.

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Made in Europe

Our facility and partners

Every cell. Every weld. Every pack. Verified.

A battery system is only as good as its weakest connection. That is why REX builds its cell blocks, modules and packs in-house in the Netherlands, on fiber-laser welding systems, with every weld measured as it is made and every pack tested before it leaves the building.

Render: REX module assembly line
Photo: laser welding cell with a battery module on the bed
Photo: control and weld inspection station at the welding cell
Render: REX Marine 5 with its charger and the REX app showing state of charge
Photo: the stern of the REX Boat S1 moored on a Dutch waterway
Photo: robot cells on the assembly floor
Start a project

Tell us what power you need. We'll specify the system.

B2B only. A response from our team within two working days; demo units available.

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