D DRY BATTERY/ R20 cell 1)Super Heavy Duty 2)2years ... . Eco-friendly, non-mercury and non-cadimium 3.Leak-proof D DRY BATTERY/ R20 cellIGNITE BRANDSuper Heavy Duty with mercury and ... cadimium free1)Metal jacket2)Discharge time: 500mins(3.9ohm, 24h/d, till 0.9v)4)Cell weight : 87.2g Cell Diameter ... : 132*62*98(mm) Carton size:413*277*206(mm) D Battery R20 Cell