AAA

Aktiengesellschaft für Akkumulatoren- und Automobilbau was a Berlin-based German manufacturer that originated as a producer of batteries before expanding into vehicle production. The company applied its expertise in accumulator technology to the construction of electric automobiles.

Although it built electric passenger cars, the firm became better known for its electric vans and light commercial vehicles. These vehicles found substantial use with the German Post Office, which operated large numbers of them for mail and parcel delivery services, taking advantage of their reliability for urban and short-distance transport.

In later years, the company also entered the market for petrol-powered vehicles, which it produced and sold under the separate brand name Alfi. This move reflected a broader shift within the industry toward internal combustion engines as the dominant technology for automobiles.

The company's dual focus on battery manufacturing and vehicle production placed it among a small group of early automotive firms that approached electric mobility from an industrial rather than purely automotive background, contributing to the diversification of vehicle propulsion technologies in Germany during the early twentieth century.