CyberPower¿s ABP36VRM2U 36V Extended Battery Pack offers extended run-times for the OL1000RMXL2U & OL1500RMXL2U UPS. These 2U packs esthetically match the UPS¿s, and can similarly be rack or tower mounted. The heavy gauge power cord is adapted with plug-n-play DC connectors for easy installation. The all metal enclosure safely houses the 6 (six) 12V 7Ah batteries which are connected via 2 strings of 3 in serial. Up to 4 battery packs can be daisy-chained to the UPS for extended run-times. * Form Factor ¿ 2U configuration supports both rack and tower mounting * Scalable ¿ Up to 4 battery packs can be daisy-chained together for increased runtimes. * Metal Housing ¿ Rigid metal construction allows for placement in areas with a demanding environment. * Battery Data Link ¿ All extended battery packs transmit diagnostic vitals directly to the main UPS.