When selecting a 100kWh battery energy storage system, prioritize models with high round-trip efficiency (above 90%), lithium iron phosphate (LiFePO4) chemistry for safety and longevity, and scalable modular design for future expansion. It uses lithium ion battery packs, which are safe and stable with high energy density. It is. . The UESS-CAB 50–100F is an all-in-one outdoor energy storage cabinet designed for factories, data centers, mining sites, cold-chain warehouses, and microgrids. no circulating current, safer for use.