[1] At that time, more than 1200 Tudor batteries were in service in Belgium and abroad including Germany, France, Austria, Spain, Egypt, Denmark, Finland, Sweden, Switzerland, Hungary, the Netherlands, Italy, Poland and Argentina.

The emblem was the name of the brand with the head of a griffin, which originated in the family of Henri Tudor's uncle, Robert Leadbitter from Newcastle-on-Tyne in Northumberland.

[2] Tudor had licensed his brand in many countries like Germany (Accumulatoren-Fabrik Aktiengesellschaft (AFA)) and Spain (la Sociedad Española Del Acumulador).

[citation needed] In others European countries during WWI, plants were completely plundered, like in Belgium and in Luxembourg.

[6] In 1920, Tudor Spain supplied the first battery for a submarine (Isaac Peral), with funding from The Akkumulator Fabrik AG.

For these facilities, the company proposed service contracts under which it bound up with keeping the battery in good working order for a period of ten years against a fixed remuneration.

In 1939, Tudor batteries France made the acquisition of the Belgian Society of Fulmen accumulator S.A. with its 5900 m² site located in Leeuw-St.Pierre.

The competition was Japanese, but also Europe with the establishment of a major General Motors production plant in Sarreguemines.