About This Product

The Sigenergy SigenStack C&I Battery Controller Advanced is the battery controller for Sigenergy SigenStack commercial and industrial battery systems using the SigenStack BC M2-0.5C-BST configuration. It manages the connection between the SigenStack battery modules, compatible Sigenergy hybrid inverter equipment and the wider energy management system. This model is suited to partial-stack SigenStack battery arrangements and provides controlled charge and discharge operation, battery communication and system protection in one dedicated controller.

Who This Product Suits

The Sigenergy SigenStack C&I Battery Controller Advanced suits commercial and industrial solar battery installations using Sigenergy SigenStack battery modules where a 0.5C BST controller is required. It is intended for installers building a matched Sigenergy storage system rather than mixing brands. It is a practical choice for staged C&I battery projects, solar-plus-storage sites, backup-capable systems and installations where battery control, communication and protection need to be handled through the Sigenergy ecosystem.

Specifications Explained

The Sigenergy SigenStack C&I Battery Controller Advanced is listed as model SigenStack BC M2-0.5C-BST. The 0.5C rating means the controller is designed for a moderate charge and discharge profile, helping balance usable performance with battery life. It supports a maximum charge and discharge current of 25 A, with charge and discharge power rated at 6.14 kW. The controller operates around a nominal battery voltage of 245.6 V with an operating voltage range of 196 V to 294 V. Communication support includes CAN, RS485, Wi-Fi and Ethernet, allowing the controller to exchange system data with compatible Sigenergy equipment. Built-in protection functions cover overvoltage, overcurrent, short-circuit and temperature-related conditions.

Summary

The Sigenergy SigenStack C&I Battery Controller Advanced is a dedicated Sigenergy controller for SigenStack C&I battery systems that require the BC M2-0.5C-BST configuration. It provides battery control, system communication and safety protection for compatible Sigenergy installations. For installers, the key point is compatibility: this controller should be selected as part of a correctly designed SigenStack system using the matching battery modules, inverter and required Sigenergy accessories.

Further Information From The Manufacturer

The Sigenergy SigenStack BC M2-0.5C-BST Advanced Battery Controller is a smart, flexible solution for managing partial SigenStack battery systems in residential or commercial energy storage applications. Specifically designed for BST (partial stack) configurations, this controller delivers safe, reliable, and optimised performance across systems with 2 to 5 battery modules, making it ideal for tailored energy storage installations.

With a 0.5C charge/discharge rate, the controller balances daily performance with long-term battery longevity, while advanced protection features-including overvoltage, overcurrent, short circuit, and temperature safeguards-ensure worry-free operation. Its smart system management monitors battery health, controls system parameters, and enables seamless integration with Sigenergy hybrid inverters and the wider energy management ecosystem.

Key Features:

• Designed for partial SigenStack systems (BST) with 2-5 battery modules
• 0.5C charge/discharge rate for reliable performance and longevity
• Advanced protection: overvoltage, overcurrent, short-circuit, and temperature safeguards
• Smart system management for seamless hybrid inverter integration
• Plug-and-play installation, wall or floor-mountable
• Communication interfaces: CAN, RS485, Wi-Fi, Ethernet
• IP65-rated enclosure suitable for indoor and outdoor use

Specifications:

• Model: SigenStack BC M2-0.5C-BST
• Max Charge/Discharge Current: 25 A
• Charge/Discharge Power: 6.14 kW
• Nominal Voltage: 245.6 V
• Voltage Range: 196-294 V
• C Rating: 0.5C
• Mounting: Wall or floor-mounted
• Dimensions: 535 x 227 x 176 mm
• Weight: 11 kg
• Operating Temperature: -20°C to 55°C

Benefits:

• Enables flexible, scalable energy storage solutions for partial-stack systems
• Safe and reliable operation with built-in protection features
• Simplifies installation with plug-and-play design
• Compatible with Sigenergy hybrid inverters for fully integrated energy management
• Compact and lightweight design for flexible placement

The SigenStack BC M2-0.5C-BST Advanced Battery Controller is the ideal solution for partial-stack energy storage systems, providing smart control, reliable performance, and seamless integration for both residential and commercial solar + storage applications.

Weights & Measurements Information

About Sigenergy

Sigenergy develops premium hybrid inverters and modular battery systems commonly used in residential and light-commercial energy-storage projects. Their products focus on safety, rapid installation, and high-power backup capability. With strong attention to software and user interface design, Sigenergy systems provide reliable day-to-day performance and detailed monitoring.