Lightweight and powerful battery compressor with a brushless motor for use in interior construction and on construction sites. Oil-free piston compressor for easy transport and reduced maintenance requirements. Control panel with easily readable displays for tank and working pressure. Adjustable, application-oriented working pressure via pressure reducer with manometer. Connections and controls are protected and clearly visible in the tubular frame. A second battery module can be placed directly on the compressor to continue working without interruption.