Keep critical infrastructure online longer when outages outlast the UPS battery alone. The Vertiv PSI PWR PROTECT EBC 48V YRS1-2 adds external battery capacity to compatible PSI PWR PROTECT systems, helping maintain runtime for servers, network gear, and edge equipment that cannot afford an abrupt shutdown. Built around a 48 V battery architecture, this replacement battery cartridge is intended for PSI PWR PROTECT deployments that need predictable backup extension without changing the UPS platform. It is a practical fit for IT teams that want to preserve the installed base while improving ride-through time for controlled shutdowns, generator start delays, and short utility interruptions. For procurement teams, the value is straightforward: extend protection without replacing the UPS. For operations teams, the benefit is equally clear: more time to keep services stable, protect data, and avoid unnecessary downtime. In environments where every minute matters, the right battery cartridge can make the difference between a clean recovery and a costly interruption.