Chemistry: Alkaline-Manganese Dioxide (Zn/MnO2) Voltage: 6 Capacity: 105mAh Measurements: 1" x 0.5" (25.40mm x 12.70mm) Replaces: A544, V4024PX, PX28 Additional Model #'s 1000-UL544A UL544A UPC: 076097305441