Greencisco OPzV tubular Gel batteries are our maintenance free batteries which are made with tubular plate and Gel according to DIN and IEC60896 standards. With design life is 20 years and 50%DOD is upto 3500 deep cycles. Widely used for power substations, power plants, solar, UPS,telecom, data centers,Oil and can normally work under extreme operational conditions,ect.