The AT-2000 model of device is an All-in-One machine, which is used in Balcony solar power system. It is a micro solar power generation system integrating batteries and PV control modules. Comprised of a battery section and a PV control section, it forms a complete set of balcony PV energy storage system in conjunction with PV modules, micro-inverters, smart electricity meters, and the power grid. the product can efficiently store the direct current generated by solar panels in the storage battery and connect to the electrical loads and the power grid through the micro-inverter, providing people with green electric energy while effectively addressing the key technical challenges such as the usability, safety, and service life of the PV energy storage system.