Proponent Battery Services GmbH

Proponent Battery Services GmbH is based in Moerfelden-Walldorf, next to Frankfurt Airport in Germany. It supplies aircraft and helicopter batteries, spare parts and battery shop equipment, and services batteries for aviation and industrial customers in more than 50 countries. The company was formerly D+C Airparts Battery in Europe GmbH, was incorporated in Frankfurt on 28 November 1979, and has been part of the Proponent group since 2017.

Products

• Aircraft and helicopter batteries from Saft, Marathon, Hawker, Concorde and Gill, including batteries for Airbus, Boeing and Bell aircraft
• Aircraft battery spares and battery shop accessories
• Battery test equipment developed by the company: the DC-CA1000 charger analyzer, DC-800 battery filler, DC-700 temperature sensor test unit, DC-600 vent valve test unit and DC-CTC24 and DC-TC60 trickle chargers
• Fire extinguishers and FUELSTAT products
• Rotorcraft filtration products

Services

• MRO capabilities for aircraft batteries and components, with a published capability list
• AOG support
• Aircraft battery maintenance services
• Aircraft battery shop setup, drawing on more than 30 years of experience in the aviation battery market
• Battery training delivered by technical inspectors at the Moerfelden-Walldorf site

Certifications and approvals

• EASA and UK CAA Part-145 approval
• FAA approved repair station
• Authorized distributor for major manufacturers of aircraft batteries, cells and spare parts
• The site reports an expanded European authorization from Saft, its main supplier, announced in August 2025

Company facts

• Moved to Moerfelden-Walldorf in 1982 and delivered its first charger analyzer in 1980
• Acquired by Sperber Aviation Industries in 2012 and by Kapco Global (Proponent) in 2017
• The Proponent group lists 12 locations and 7 distribution centers across North America, Europe and Southeast Asia, including sites in the Netherlands, UK, Spain, Singapore, China, Hong Kong and several US states