Protect uptime with a battery cartridge built for the right UPS platform. Vertiv GXT PWR PROTECT EBC 36V YRS1-4 is an external battery cartridge for compatible GXT systems that require 36 V battery support. It gives IT teams a direct path to refresh aging batteries while preserving the UPS configuration already in service. In power protection, the difference between a correct replacement and a close match is operational risk. A cartridge specified for the exact system helps maintain the expected runtime profile, simplifies field replacement, and reduces the chance of procurement errors that can delay restoration. That matters in network closets, branch offices, and distributed infrastructure where backup power has to be ready without extra engineering work. This Vertiv battery cartridge is a practical fit for organizations that standardize on GXT power protection and want a controlled replacement strategy instead of replacing the entire UPS. Specify the exact MPN during ordering to keep asset records clean and service planning straightforward. For teams that value predictable backup power, the battery behind the UPS should be just as dependable as the UPS itself.