Rayovac® Lantern Battery, Heavy Duty, 6 VDC, Zinc Carbon Battery, 2.63 in L x 2.63 in W x 4.5 in H Dimensions. Built For Performance. Rayovac® High Performance Lantern Batteries - Power Right Where You Need It. Rayovac® 944R Heavy Duty Lantern Battery, Zinc Carbon, 6 VDC Nominal, 10500 mAh Nominal