Discover® Energy Storage Tubular Gel OPzV are maintenance-free batteries and provide superior deep cycling performance and reliable energy storage for stationary applications including UPS, Industrial Backup, Telecom Networks, and Renewable Energy. OPz Tubular Plate Technology extends lead-acid battery service life significantly by providing excellent recovery during deep discharge and frequent Partial State of Charge operation. OPzV batteries provide maximum efficiency per discharge-charge cycle, and proven reliability in remote, high temperature, and unstable power network installations. OPzV batteries eliminates frequent and complex maintenance practices and provide the Lowest Total Cost of Ownership (TCO) amongst maintenance-free lead-acid technologies.