Energy Cube FoxESS CM4100 energy storage system with built-in Battery Management System (BMS) and FoxESS CS4100 batteries creates a comprehensive energy storage solution. With the ability to configure with different numbers of CS4100 modules, this system is highly flexible and can be tailored to various energy needs. FoxESS ECS is an innovative solution focused on optimizing energy usage. With intelligent battery charging and discharging management, this system ensures reliability, safety, and high energy efficiency. Battery scaling from 3 to 7 units (8.64 kWh - 20.16 kWh).