Add runtime where it matters most with the Vertiv Liebert PSI5 48V external battery cabinet. Designed for PSI5 UPS environments, this cabinet expands battery capacity so connected systems can ride through outages, transfer events, and controlled shutdown windows with more margin. For infrastructure teams, the value is straightforward: preserve the UPS investment while extending the battery reserve behind it. That makes this cabinet a practical fit for branch offices, edge closets, and government or regulated environments that need TAA-aligned sourcing. It is purpose-built for compatibility with the PSI5 platform, so deployment stays focused on continuity rather than redesign. Compared with replacing the UPS for more runtime, an external battery cabinet is a cleaner path when the load profile is already defined and the priority is longer backup duration. It helps protect servers, network gear, and storage systems during short outages and unstable utility conditions, giving teams more time to maintain service levels and complete orderly shutdowns when needed.