The 12V 7Ah lead-acid batteries is the most common small lead-acid battery in daily life, focusing on convenience and practicality, widely used in households and small equipment. Small in size and light in weight, it is mainly used for household emergency lights, small UPS power supplies, electric roller shutters, security monitoring equipment, etc. In daily families, it can be used as an emergency backup power supply to power routers and desk lamps in case of sudden power outages, ensuring basic living needs; in the security field, it can continuously power surveillance cameras for 8-10 hours, avoiding monitoring interruptions due to power outages. It has stable charge and discharge performance, convenient charging, no complicated operations, and high cost performance, suitable for various low-power small equipment, and is an indispensable backup power choice for families and small places.