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