Battery pack:：
This is the core component of the energy storage cabinet and used to store electrical energy. Common battery pack include lithium-ion batteries, lead-acid batteries and so on.
Battery Management System（BMS）:
It is used to monitor and control battery status, charge/discharge process, and protect the battery from overcharge, overdischarge, and overcurrent.
Inverter:
It is used to convert the direct current energy stored into AC power for use in a power system or other equipment.
Control system:
It is used to monitor and control the operating state of the energy storage unit, energy management, communication, etc.
Cooling system:
It is used to keep the temperature of the energy storage unit within a safe range, and usually includes a fan, heat sinks and other components.
Housing and connector:
It is used to provide protection and mechanical support, and to ensure connection to other equipment.