Add more runtime to a GXT5 UPS without changing the core power platform. The Vertiv GXT5-EBC48VRT2U external battery cabinet is designed for 1.5 kVA and 2 kVA GXT5 systems, giving infrastructure teams a straightforward way to increase ride-through for longer outages, maintenance events, or graceful shutdown procedures. This kind of expansion matters when the UPS is already the right size for the load, but the site needs more time before power returns or generators take over. An external battery cabinet lets you scale runtime while keeping the UPS architecture consistent, which is often the most efficient path in edge rooms, network closets, and distributed IT sites. For teams managing uptime against budget, the cabinet offers a practical middle ground: more battery capacity without moving to a larger UPS chassis. That makes it easier to protect critical equipment, preserve operating continuity, and align backup power with real-world recovery requirements. In environments where every minute counts, added battery capacity is not a luxury — it is a control point.