Product Description

Deye BOS-B Pro-A3 High-Performance Battery Energy Storage System

The Deye BOS-B Pro-A3 High-Performance Battery Energy Storage System is designed for commercial and industrial (C&I) energy storage applications. Featuring LiFePO4 battery technology, a modular architecture, and scalable power capacity, it supports flexible energy storage deployment for diverse business needs.

With 257.23 kWh nominal energy capacity, high conversion efficiency, and seamless transfer switching within 20 ms, the BOS-B Pro-A3 helps improve energy utilization, enhance power supply continuity, and support reliable energy management.

Key Features:

High Energy Capacity: Provides 257.23 kWh nominal capacity and 231.51 kWh usable energy at the recommended 90% depth of discharge (DoD).

Modular and Scalable Design: Supports 5–16 battery modules in series, with PCS configurations scalable from 100/125 kW up to 2.5 MW.
High Conversion Efficiency: Delivers approximately 98.5% PCS efficiency and MPPT performance above 99%.

Fast Seamless Switching: Supports STS transfer within ≤20 ms for improved power supply continuity.

Reliable LiFePO4 Technology: Uses 314 Ah battery modules with a nominal voltage of 51.2 V and energy capacity of 16.08 kWh per module.

Compact Rack-Mounted Design: Integrates battery modules into a space-efficient system for commercial and industrial installations.

Detailed Specifications