Eaton 744‑A4058 Replacement Sealed Lead Acid UPS Battery Cartridge

Overview :

The Eaton 744‑A4058 is an internal replacement battery cartridge (RBC) designed to restore runtime performance in compatible Eaton UPS systems. It is typically deployed by data center infrastructure teams, facilities engineers, and IT operations staff maintaining single‑phase UPS units. This cartridge addresses degraded runtime from aged batteries, ensuring the UPS continues to provide battery‑backup power during utility outages.

The unit uses valve‑regulated lead acid (VRLA) battery chemistry—sealed maintenance‑free cells engineered for UPS backup use. It comes pre‑wired and hot‑swappable, allowing battery replacement without powering down connected equipment in supported UPS models, which reduces maintenance windows and avoids unintended service interruptions.

Mechanically compact, the 744‑A4058 fits into the internal compartment of the compatible UPS model, eliminating the need for external battery packs or additional rack space. Its form factor and connector harness are designed to match the host UPS for straightforward installation.

Integration is hardware‑level only; the battery cartridge does not provide communications or network telemetry. Monitoring for replacement needs must be handled by the host UPS’s battery health indicators or management interface.

A typical deployment is in Eaton 5P750RC UPS systems used in server rooms, edge closets, or distributed IT racks where extended battery life is required post original OEM battery end‑of‑life. This cartridge is not a universal UPS battery and must only be used in specified compatible models.

Key Features

• Valve‑regulated lead acid (VRLA) maintenance‑free UPS battery
• Hot‑swappable internal cartridge for minimal service interruption
• Pre‑wired harness for direct installation in compatible UPS
• Designed for Eaton 5P750RC UPS systems
• Compact form maintains original UPS footprint

Technical Specifications