No welding, free disassembly and replacement of batteries. Equipped with DC constant voltage UPS function, it realizes automatic charging and discharging management without the need for manual participation, with multiple output functions, covering commonly used voltages such as 5V, 9V, and 12V in optical tracing, routers, and monitoring cameras. Capacity: Installable battery capacity: 6*3.7V*3400mah=74 watt hours; (battery prepared by user). Output power: rated output power 12Vx5A=60W; the actual output power comes from the output power of the battery itself. Output voltage: output 12V3-5A: 9V1A: USB5V2-3A: Enabling the UPS function requires meeting the input power conditions. Whether the voltage is stabilized: The voltage is not stabilized, the batteries are connected in series and output directly, and the voltage increases or decreases with the power. Application type: Suitable for high-power electrical appliances that do not require voltage stabilization, motors, LED lights,