As a classic product in the energy storage market, the 12V 200Ah lead-acid batteries has distinct advantages and disadvantages. Its core strengths include high cost performance, mature technology, strong stability and good impact discharge resistance, suitable for various standby energy storage scenarios. The sealed structure is safe and leak-proof with easy installation and strong compatibility for flexible series and parallel expansion. However, it has low energy density, large size and heavy weight with poor portability. Its cycle life is shorter than lithium batteries with a service life of 3-5 years. It is not suitable for long-term deep discharge, and its capacity decreases significantly in low-temperature environments.