OPzV Tubular Gel (solid-state) battery is a new battery technology based on traditional lead-acid battery, which has been improved through technology research and development and countless practices. OPzV uses gas-phase nano silica as electrolyte to replace the sulfuric acid electrolyte of traditional lead-acid battery to form colloidal medium and then solidify. It not only ensures excellent conductivity, but also completely eliminates the leakage and volatilization of electrolyte, so as to prolong the service life of the battery and reduce the maintenance cost. The Battery is designed and manufactured according to DIN standards and with die-casting positive grid and patent formula of active material. OPzV series exceeds DIN standard values with 20~25 years floating design life at 25℃ and is even more suitable for cyclic use under extreme operating conditions.