Test condition: 3.9 Ohm, 24hr/0.9V 1) Super heavy duty: 100mins discharge time 2) Long life: 50mins discharge time Jacket available: 1) PVC 2) Aluminum metallic foil 3) Metal Packing available: 1) 2 - 4pcs/shrink wrap 2) 2 - 4pcs/blister 3) 4pcs/shrink card