This all-in-one cabinet features a modular design, allowing for flexible expansion and easy installation, operation, and maintenance. The unique oil immersion battery system ensures the safety of the batteries. With an IP54 and C4/C5 protection level, it is suitable for. The QC-215K-O outdoor cabinet energy storage system is well-suited for a variety of industrial and commercial settings, including supermarkets, restaurants, hospitals, and industrial parks. IP54-rated outdoor cabinet withstands extreme temperatures, dust, and moisture. Flexible Expansion: Designed to support off-grid switching and photovoltaic energy charging, making it ideal for.