June 10 & 11, 2026
Hall 1, Köln Messe, Germany

Exhibitor Products

OBC 22K Universal – Bi-Directional On-Board Charger

REFU Drive GmbH Hall: 1 Stand: 3090
The OBC 22K universal is a highly flexible, bi-directional on-board charger designed for commercial vehicles and off-highway applications, including agricultural machinery. It supports global grid topologies and integrates seamlessly with international charging standards, making it suitable for worldwide deployment.

With a maximum charging power of 22 kW (up to 25 kW) and DC voltage ranges up to 950 V, the charger enables efficient and fast energy transfer across a wide range of vehicle architectures. Its bi-directional capability (V2X) allows energy to flow not only from the grid to the vehicle, but also from the vehicle to external loads or back to the grid (V2L / V2G).

The system achieves efficiency up to 97% despite galvanic isolation, ensuring minimal energy loss during operation. It is engineered for demanding environments, operating reliably in a wide temperature range and featuring a robust IP67/IP6K9K-rated housing with liquid cooling.

The charger supports both single-phase and three-phase AC inputs, as well as generator operation, making it highly adaptable for different use cases, including remote or off-grid scenarios. It can also operate in wired-vehicle mode (optional without battery), further increasing system flexibility.

Advanced communication via SAE J1939, combined with compliance to ISO 26262 (ASIL B) and global charging standards such as CCS, Type 1/2, and others, ensures seamless integration into modern vehicle architectures.

With its compact design, high efficiency, and universal compatibility, the OBC 22K provides a future-proof charging solution for electrified commercial vehicles and mobile machinery worldwide.

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