The Energizer 4LR44 is a popular alkaline battery that is used in a number of applications including manual focus SLR or medium format cameras. Type: Alkaline (Single Use) Voltage: 6.0V. Diameter: 13.0 mm.
Height: 25.2 mm. Also known as: PX28, 4SR44, V28PX, 544, A544, KS28, RPX28, 4G13, 1406SOP, L1325, PX28A, V4034PX,