Expand a compatible GXT Lithium power-protection installation with a 48 V external battery cabinet. The cabinet stores DC battery energy for the connected power system, supporting applications where the available battery capacity of the base equipment does not meet the required operating window. Its lithium battery platform aligns it with Vertiv GXT Lithium equipment rather than conventional battery cabinet configurations. ZGXTL-PB-48V-01 is specified as a 48 V EBC, or external battery cabinet. That voltage designation is the key electrical matching point when selecting battery expansion hardware for an existing installation. The cabinet is intended to work as part of a power-protection system, not as a standalone source of regulated AC output. Supported base equipment, available runtime, battery quantity, connector details, and mounting dimensions depend on the associated system configuration. Within the GXT Lithium range, this version is distinguished by its 48 V battery designation and lithium chemistry. The ordering code also carries a 1-year coverage designation. Select this cabinet when the connected GXT Lithium installation requires the matching 48 V external battery expansion format and lithium battery technology.