With the advantages of large capacity, high stability and cost performance, the 12V 200Ah lead-acid batteries is widely used in civil and industrial fields. In industrial scenarios, it is mainly applied to UPS uninterruptible power supplies, EPS emergency power supplies and computer room standby energy storage systems to ensure continuous equipment operation after power failure. In civil scenarios, it adapts to solar photovoltaic energy storage, household emergency power supply, RV and yacht energy storage equipment for off-grid environments. It can be used in series and parallel connection, with safe sealed maintenance-free design and no electrolyte leakage, ideal for small and medium-sized energy storage systems.