Household energy storage LiFePO4 batteries are divided into three types by structure and application scenarios. The modular type supports series and parallel connection for capacity expansion, suitable for on-grid and off-grid household scenarios with strong versatility. The wall-mounted type features a thin and lightweight body, easy to install and space-saving for small families. The integrated type combines batteries, BMS and inverter modules, plug-and-play and user-friendly. Compared with ternary lithium and lead-acid batteries, LiFePO4 batteries have become the mainstream for home energy storage due to high safety and stability, with different types matching diverse household power needs.