Eaton 9E extended battery module (EBM), 2 U rack form factor, Additional battery module to extend the runtime of Eaton 9E 2000i and Eaton 9E 3000i UPS rack systems, VRLA lead gel battery with 12 V / 9 Ah, Incl. rack-mount kit. Additional runtime: at 2500 W: + approx. 22 min. at 1800 W: + approx. 30 min. at 1200 W: + approx. 45 min. at 800 W: + approx. 72 min. at 500 W: + approx. 120 min. Net weight: 41.6 kg Note: A total of max. 4 battery modules can be connected!