Vertiv CPQ-1044627-03 APS External Battery Cabinet | UPS Battery

Extend backup duration where downtime is not an option. The Vertiv APS EXT BATTERY CAB, MPN CPQ-1044627-03, adds external battery capacity to compatible APS UPS deployments so critical systems can stay online longer during outages and transfer events. For infrastructure teams that need more than a standard internal battery string, an external cabinet is the practical way to increase ride-through without changing the core UPS platform. This cabinet is suited to environments where runtime matters as much as power conditioning: network closets, edge compute rooms, telecom spaces, and distributed IT sites with limited maintenance windows. By separating additional battery capacity into an external enclosure, it supports cleaner serviceability and a more scalable power architecture than smaller, fixed-battery alternatives. Because this is a replacement-battery category component, the value is in extending protection, not adding complexity. It is a fit for teams standardizing on Vertiv APS systems and looking to preserve investment in the existing UPS while improving outage tolerance. For procurement, it offers a targeted upgrade path that can be easier to justify than replacing the full UPS stack.