PBH4AAS is a square plastic battery holder that holds 4 AA batteries, connecting them in series arrangement to form about 6 V output. This battery holder has a red and a black wire lead that are about 6 inches long each. Clearly marked for the size and the direction of placing batteries. The center divider and the side walls are curved to securely hold the batteries. There are two screw holes at the bottom that may be used to mount this battery holder. The smooth flat bottom of this battery holder also makes it possible to mount it using double sided adhesive tapes. The ends of wire leads are stripped and tinned 5 mm.