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The company GW Batterien GmbH

Going strong for 100 years for battery systems


GW Batterien GmbH is an SMB which was created as a result of the merger of the long-standing companies GAZ Batterie GmbH and Wieser Industrie- und Bahntechnik GmbH.

Under the corporate name GW Batterien GmbH we are at your disposal as a competence centre for everything to do with batteries offering an extended range of services and the full spectrum of our know-how. We work together with you to find solutions.

The range of our activities encompasses both the development, production and delivery of batteries for rail vehicles as well as the assembly and delivery of stationary battery systems and numerous specialist products.

GW Batterien GmbH is DIN EN ISO 9001 and DIN EN ISO 14001 certified.

In addition to implementing customer-specific projects, the core business of GW Batterien GmbH focuses primarily on our professional range of services such as the reconditioning of rail batteries in operational use.

Today GW is an important and high-performance partner for national and international customers.

Milestones of GW Batterien GmbH

The history of our company


Pioneer with batteries in fire protection design

according EN 45545


Framework agreement with Deutsche Bahn AG

Stationary battery systems


Intensification of international business

Founding of GW Batterien GmbH

Logistics partner for Sunlight Systems

Partnership with OEM


Founding of Wieser Industrie- und Bahntechnik GmbH

Initial projects for OEM

Rail vehicle batteries

Specialisation into rail batteries

reconditioning, service, new development

Initial contracts with Deutsche Bahn

reconditioning, service

Company founded by Dipl.-Ing. N. Wieser (BEng)

project planning, sales and assembly of stationary battery systems worldwide


Founding of GAZ Batterie GmbH

Extension of the sales operation for batteries


Production expansion

Production of NiCd train light batteries and lead starter batteries for motor vehicles


Conversion to battery-operated Davy lamps

production of NiCd batteries


Founding of the company Friemann & Wolf

development and manufacture of gasoline safety lamps for underground mining



The philosophy of GW Batterien GmbH

This is our key concern when we develop our products


Successful product innovation, a high degree of reliability, outstanding quality, our particular flexibility and adherence to the shortest delivery deadlines make GW Batterien GmbH a first-class partner..

Our employees are our most important capital

Our highly-qualified employees are the guarantee this performance will be delivered. With their many years of experience both in development and production as well as in sales they are your competent contacts for all issues relating to battery technology.

Thanks to our employees’ extensive know-how, we can also respond quickly and flexibly to new requirements which are continuously changing in markets moving increasingly quickly. This is what makes us a reliable and high-performance provider for national and international companies.

Certified quality for high-performance batteries

Tested systems for maximum safety


The quality management system of GW Batterien GmbH ensures our products and services are of an exemplary quality.

Our quality management system has a process-oriented structure in accordance with DIN EN ISO 9001:2008 and has been certified successfully since April 2006. Our performance and the quality of our products are reviewed regularly by our customers in audits.