Eaton BP48V27-2US – 48V External UPS Battery Pack 2U

Overview

The Eaton BP48V27-2US is a 48V external battery pack designed to extend runtime for compatible rack-mount and tower UPS systems. It is deployed by data center engineers and IT infrastructure teams where extended backup duration is required beyond the internal UPS battery capacity. This unit addresses runtime limitations in environments where maintaining uptime during prolonged outages is critical.

The battery pack operates at a 48V DC system voltage and connects to compatible UPS systems using an attached high-current DC cable with a 2-point connector. It supports daisy-chain expansion, allowing multiple battery packs to be connected in series to increase total runtime capacity. This enables scalable backup configurations without replacing the primary UPS.

Physically, the BP48V27-2US is designed for 2U rackmount installation in 19-inch EIA-standard racks, with support for tower deployment. It includes mounting hardware for 4-post rack installation, and optional kits allow 2-post rack or wall mounting, making it adaptable across MDF, IDF, and edge rack environments.

Integration is limited to 48V-compatible Eaton/Tripp Lite UPS systems, including multiple SmartOnline and SmartPro series models. The unit includes battery detection jacks for automatic UPS configuration when additional packs are connected. Proper rack depth (minimum ~29.6 inches) and weight considerations are required during deployment planning.

A typical deployment involves adding one or more BP48V27-2US units to a rack UPS supporting network switches, servers, or telecom equipment to extend runtime during power outages. This device should not be used with non-compatible UPS systems or in environments requiring independent power output, as it functions strictly as a DC battery extension module, not a standalone power source.

Key Features

• 48V DC external battery pack for UPS runtime extension
• Daisy-chain support for multiple battery pack expansion
• High-current DC connector with attached heavy-gauge cabling
• 2U rackmount design with 4-post mounting hardware included
• Compatible with multiple Eaton/Tripp Lite 48V UPS systems