Marketing Information: Backup Battery Module Gives Your Compatible Eaton UPS System Extended Runtime The valve regulated lead acid 9PXEBM48RT offers extended battery runtime when used in conjunction with Eaton's 9PX1000GRT, 9PX1500RT, 9PX1500RTN and 9PX1500GRT 9PX UPS systems. It can also be daisy-chained for a maximum of four matching battery packs to deliver even longer extended-run operation. Heavy-gauge cabling with high-current DC connectors is included for safe, simple installation. Versatile Installation Options You can mount the 9PXEBM48RT in 2U of space in an EIA-standard 19-inch rack using the included 4-post rail kit or an optional 2-post rail kit (RK2PC, sold separately). You can also adapt it for tower installation using the included support stands.