Battery Output Voltage 72 V Battery type Lead-acid battery Expected Battery Life (years) 3 - 5 RBC Quantity 2 Rack Height 2U Hot-swappable batteries Ensures clean, uninterrupted power to protected equipment while batteries are being replaced Maximum Height 85MM, 8.5CM Maximum Width 432MM, 43.2CM Maximum Depth 594MM, 59.4CM Net Weight 33.9KG