CyberPower BP48V75ART2U Extended Battery Module, 48V/45A, 2U Rack/Tower Extended Battery Modules (EBMs). Expand runtime and quickly restore full backup power with Fast Charge Technology. 2U Rack/Tower Configuration - Allows for horizontal rack or vertical tower installation. Operating Temperature 	32  95 degree Fahrenheit Compatible with; PR1000LCDRTXL2Ua, PR1500LCDRTXL2U, PR2200LCDRTXL2U, PR3000LCDRT2U, PR3000LCDRTXL2U, OR1500LCDRTXL2U and OR2200LCDRTXL2U. Battery type & quantity: 12 Volt/9AH (8) Smart Battery Management (SBM) - Uses a three-cycle charging mode that improves battery life and reduces generated heat. ENERGY STAR certified. 3 Year Warranty. Extended battery packs for the PR1000LCDRTXL2Ua, PR1500LCDRTXL2U, PR2200LCDRTXL2U, PR3000LCDRT2U 48V, 8 x 12V 9Ah Plug-n-Play installation 2U Rack/Tower configuration