The PWRcell Battery Cabinet allows system owners the flexibility to scale from an economical 9kWh to a mas-sive 18kWh by installing additional battery modules to the PWRcell Battery Cabinet. Suitable for indoor and outdoor wall mount1 with NEMA 3R rating. 1Optional floor support with. . Some battery boxes are large enough to be considered battery cabinets and are usually made from painted steel. Larger installations often require custom solutions, 3. For example, a battery with a capacity of 100 Ah can provide 1 amp of current for 100 hours, or 10 amps for 10 hours. ), design these enclosures with. . Part Number: BBA-1M Manufacturer: OEM Material: Aluminum (Standard), Stainless Steel Available Finish: Mill (Standard), Powder Coat UL Approved: Yes NEMA Rating: 3R, 4, 4X Overall Dims (HxWxD – IN): 20.