Wave breaking on open water

Automotive-grade battery systems for the products people rely on every day.

  • 1 million+ Cells integrated per year
  • Since 2023 REX Marine systems on the water
  • 100% Final assembly in Europe
  • EU-wide Service contracts & support
Photo: REX 51.2 V modules in a stainless frame above the drive unit
Designed & made in the Netherlands

REX is the battery partner for robust, power-intensive applications: marine propulsion, portable and stationary energy, medical and service robotics. One specification, every unit, made in Europe and supported for life.

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Applications

One battery partner across your product range.

REX is the partner for robust, power-intensive applications: marine propulsion, portable and stationary energy, medical and service robotics.

All applications
  • 01

    Marine & e-boating

    The proven REX Marine 51.2 V system: 5 kWh modules, parallel to 20 kWh, for sloops, tenders and commercial craft.

  • 02

    Portable & stationary energy

    Power stations and home storage modules, 1–5 kWh per unit, stackable.

  • 03

    Medical & service robotics

    High-density packs for hospital logistics, mobile medical equipment and service robots.

  • 04

    Industrial & low-temperature

    Battery systems for outdoor, cold and demanding duty cycles.

Why REX

Why European OEMs buy their batteries from REX.

Sourcing battery systems from Asia means thousands of resellers, specifications that change between batches and build quality you cannot audit. REX integrates cells and components into one controlled specification, assembles in Europe with European contract manufacturers, and stays responsible after delivery.

Photo: assembly line, Netherlands

  • Made in Europe

    Integrated and tested in the Netherlands and at European contract manufacturers.

  • Proven quality, consistently delivered

    Qualified cells bought at scale, fixed bill of materials, batch traceability. No surprises between deliveries.

  • Automotive-grade integration

    Matched BMS, chargers and enclosures per application; REX BMS kit in development; software support included.

  • Compliant and passport-ready

    CE, UN 38.3, IEC 62619 / 62133 held or in progress; EU Battery Regulation passport-ready documentation.

Made in Europe

Where REX systems come together

Designed in the Netherlands, with final assembly and testing at our own facility and at European contract manufacturers. Sub-components sourced globally under REX specification.

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

Product groups.

Product families
Photo: REX Boat S1 on the water
REX Boats

Where REX started: on the water.

The REX Boat S1 is a fully electric 6.5 m sloop built around the REX Marine system: 20–41 kWh, whisper-quiet, 8 kW continuous. Our first application, and still our best reference.

REX Boats as an application
How we work

From requirement to delivery and service.

  1. 01

    Requirements

    Load profile, envelope, environment, certification targets.

  2. 02

    Specification & quote

    Platform selection, configuration, cost and lead time.

  3. 03

    Demo unit

    Evaluate a REX system in your own product.

  4. 04

    Integration support

    Mechanical, electrical and software integration guidance.

  5. 05

    Compliance

    CE, UN 38.3, IEC and battery-passport documentation.

  6. 06

    Delivery & service

    Series supply from Europe with a service contract.

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.

Request a quote