Vertiv Liebert External 9Ah, 48V Battery Cabinet for Liebert GXT4-500RT120, GXT4-700RT120, GXT4-1000RT120, GXT4-1500RT120, GXT4-2000RT120, GXT4-500RT230, GXT4-700RT230, GXT4-1000RT230, GXT4-1500RT230 and GXT4-2000RT230 UPS Models - GXT4-48VBATT ; 48VDC external battery cabinet; rack rails; 1.5' cable