Eaton External Battery Pack for Select Eaton 5PX G2 UPS 48V 2U Rack/Tower EBM - Lead Acid - Sealed Battery Pack - 5PXEBM48RTG2
Compatible with 5PX1000RTG2/ 5PX1000RTNG2/ 5PX1500RTG2/ 5PX1500RTNG2/ 5PX1500HRTG2
Connect up to four 5PXEBM48RTG2 battery modules for extended runtime
Includes heavy-gauge cabling with high-current 48V DC connectors
Supports 2U rack mounting or upright tower installation using included hardware
In terms of cost per watt hours, it is an inexpensive choice providing efficient power