Greencisco OPzV 12V100AH, 12V150AH,12V200AH tubular gel batteries;OPzV 2V200Ah to 2V3000Ah tubular Gel batteries; OPzS flooded tubular batteries with 2V200Ah to 2V3000Ah, 6V and 12V batteries are widely used for power substations,national grid, electricity, UPS,power plants,solar systems, with design life>20 years at 25C, with 50%DOD is upto 3000cycles.