Duracell® Lantern Battery, Rectangle, Alkaline-Manganese Dioxide, 6 VDC Nominal Voltage, 13 Ah Nominal Capacity, Lantern, 6 VDC Discharge Cut-Off, 600 mOhm Internal, Screw Terminal, 6 - 8 Years Shelf Life, Life Hour: 420 hr, 2.638 in L x 2.638 in W x 4.528 in H