The 2V1000Ah lead-acid batteries is the core equipment of fixed standby power supplies, focusing on emergency power supply during power outages and widely deployed in key infrastructure. In power and nuclear power systems, it provides uninterrupted power for relay protection and automatic control systems to avoid equipment failures caused by power cuts; it ensures continuous operation of network equipment in communication base stations. The battery is normally in float charging standby state, with tiny supplementary charging and voltage stabilization under normal grid conditions, and automatically switches to discharge once power fails. It has strong compatibility with various UPS systems and emergency power circuits, featuring fast response and stable operation. The maintenance-free design greatly reduces operation and maintenance costs, fully meeting 7×24-hour uninterrupted standby power demand.