Compact AAA Battery Enclosure New Age Enclosures Compact AAA Battery Enclosures have a compact design that is comfortable for any handheld application. The New Age Enclosures compact AAA battery enclosure features space for a .90' wide x 2.62' long PCB. These cases are injection molded in white or black 94HB ABS plastic and are RoHS compliant. Total dimensions are 2.8' x 1.1' x 0.9'.