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We develop and test E/E components, wiring systems, high-voltage (HV), battery and charging systems for the electromobility of the future.

We support you from the first step to implementation in all phases of wiring system and E/E development.

From concept to series production: high-voltage, battery and on-board power supply development

We provide you with customised solutions for the challenges of modern vehicle development, especially in the field of electromobility. Our experienced engineering team supports you from the concept phase to series production readiness and beyond.

With our specialisation in the development and integration of vehicle electrics/electronics, wiring system architectures, high-voltage systems and batteries. We use state-of-the-art methods and automated development and manufacturing processes to optimise cost efficiency and product quality. Our solutions are individually tailored to your needs and use state-of-the-art cell technology for maximum performance and durability.

We develop and design the mobility of the future with you. We will support you in the following areas, among others:

  • HV systems and battery
  • Charging systems
  • Wiring system development
  • E/E integration
  • Electronics development
  • Test & Validation
  • Project planning and implementation
  • Cost optimisation

“Electromobility of the future requires a deep understanding of the complexity of high-voltage systems, batteries and wiring systems. Only through careful planning, precise implementation and continuous optimisation it is possible for us to guarantee our customers the highest performance and reliability.

At RLE Mobility, we rely on innovative technologies and customised solutions to meet the requirements of electromobility and enable sustainable progress”

Marco Thömmes


Our area of expertise for E/E, battery, HV and wiring system development


High voltage (HV)
and battery

We develop and test customised high-voltage systems and batteries that are tailored precisely to your individual requirements. We always use the latest cell technology to ensure maximum performance and durability. With our solutions, you can concentrate on your core business while we take care of the development, integration and validation of your HV systems. Increase the efficiency and reliability of your vehicles!



Fast charging methods, wireless charging and bidirectional charging are increasingly coming into focus. From specification and implementation to validation and acceptance of different charging processes, taking into account the relevant standards, our comprehensive know-how is at your disposal. Through our partnerships with market-leading companies, we offer fully digitalised charging processes and comprehensive access to charging networks.


Development of
wiring systems

The wiring system is and remains one of the most complex systems in the automobile. We develop a future-proof wiring system architecture for you using state-of-the-art methods. In doing so, we attach great importance to economic efficiency and product quality. Our know-how also enables the use of automated development and production methods. Our simulation expertise rounds off the development portfolio.



Benefit from our expertise in E/E integration and complex functions that also interact outside the vehicle. Our experts support you from the concept phase through to series support and further development. We ensure that the overall system is fully predictable and robust – based on your customer requirements. Increase the performance of your vehicle with our E/E integration.



Electronic circuits are the basis of any intelligent E/E architecture of the future and play a decisive role in the development of electromobility. With us, you receive customised electronics according to the latest development standards and safety requirements, which we develop together with you throughout the entire V-model from specification to product release.


and validation

We develop individual test strategies for you to meet the complex challenges of e-mobility and support you in the efficient cooperation of all parties involved. Our established processes enable highly automated testing of vehicles and test benches (HiL, SiL, MiL) to achieve a high level of testing maturity. With our tools, we also visualise large amounts of data in real time.

HV, wiring system and battery development are exactly your topics? Use our contact form and we will send you detailed information or contact you directly!


Phone: +49 2204 9725-0


Brodhausen 1, 51491 Overath, Germany


Brodhausen 1, 51491
Overath, Germany

+49 2204 9725-0