Tubular OPzV Battery OPzV series adopts nano gas-phase silica solid-state electrolyte and TubularPlate technology, offering high reliability and stable performance.The OPzV series is designed and manufactured according to DIN standards, with die-casted positive grid and patented active material formula, they exceedthe DIN standard values. They offer 20~25 cyclic years design life in float service 25°C and are suitable for cyclic use under extreme operating conditions.Suitable for power supply in photovoltaic/wind energy storage,telecommunication and UPS applications.