The household energy storage system, solar energy storage system, staggered peak energy storage battery, and the use of high safety and long life lithium iron phosphate battery are modular design, easy to install and maintain, and can be wall-mounted and cabinet-mounted. Built-in BMS intelligent tracking optimizes the management of each battery to achieve the best performance of each battery and prolong its life. It also has charge and discharge overvoltage, overcurrent, overload and over-temperature protection. Multi-communication management interface, LCD display, real-time view of battery pack management, rich communication interface, can communicate with battery management devices such as inverters, to achieve multi-group series-parallel management, multi-scenario application. The color of the fuselage can be customized according to your needs. The surface of the fuselage has anti-oxidation treatment, rust prevention and dust prevention.