Add more ride-through time to compatible Vertiv GXT5 UPS systems with a 36 V external battery cabinet designed for rack environments. This accessory is built for teams that need more than basic battery backup: it gives critical infrastructure additional runtime to bridge longer outages, support orderly shutdowns, and keep network, storage, and edge systems available when utility power drops. The 2U rack form factor fits cleanly into standard infrastructure layouts, making it easier to expand backup capacity without redesigning the power stack. As a TAA-compliant unit, it also fits procurement requirements for public sector and regulated environments where sourcing matters as much as performance. For IT teams protecting high-value workloads, an external battery cabinet is often the difference between a graceful recovery and an avoidable interruption. Use it when the built-in battery runtime is not enough for your recovery objectives, or when you need a more scalable UPS strategy for longer hold-up times. It is a practical way to increase resilience without replacing the entire UPS platform.