About This Product

The Sigenergy SigenStack Battery Sub Base (1C) is a sub-base accessory for Sigenergy SigenStack 1C commercial and industrial battery systems. It is used when building an additional battery stack within a SigenStack installation, providing the lower base component for a sub stack rather than the main stack. It forms part of the approved Sigenergy battery structure and connection layout for modular energy storage systems.

Who This Product Suits

The Sigenergy SigenStack Battery Sub Base (1C) suits solar and electrical installers expanding a Sigenergy SigenStack 1C battery system beyond a single main battery stack. It is intended for commercial and industrial battery storage projects where extra SigenStack battery columns are required as part of a larger system design. It should be selected when the system configuration calls for a sub-base, not a main base.

Specifications Explained

The Sigenergy SigenStack Battery Sub Base (1C) is identified as the SigenStack Base SUB-1C and is used with Sigenergy’s SigenStack 1C battery architecture. The 1C designation relates to the compatible SigenStack battery stack class, which is designed for higher charge and discharge performance when paired with the correct Sigenergy battery controller and inverter setup. This part is a base accessory only; it does not store energy, convert power or operate as a standalone battery controller.

In a SigenStack system, the sub-base is used at the bottom of an additional battery stack and works with the battery modules, top cover, controller and compatible Sigenergy C&I inverter equipment. It supports the modular layout of the system and helps keep the battery stack arrangement consistent with Sigenergy installation requirements.

Summary

The Sigenergy SigenStack Battery Sub Base (1C) is a required installation accessory for nominated SigenStack 1C sub-stack configurations. It is best understood as the base component for an additional battery column in a larger Sigenergy commercial energy storage system. For correct use, it should be matched to the approved SigenStack 1C system design and installed with compatible Sigenergy battery and inverter components.

Further Information From The Manufacturer

The Sigenergy SigenStack Sub Base 1.0C is a high-performance expansion solution for your modular SigenStack battery system, designed to add additional 1.0C battery modules beyond the initial main base capacity. Perfect for larger residential or commercial energy storage systems, it enables seamless integration of extra batteries while maintaining stability, safety, and professional installation standards.

Key Features:

• Expands your system to support more than five SigenStack 1.0C battery modules
• 1.0C charge/discharge rate for high-speed energy storage performance
• Floor-mounted design for secure and stable stacking
• Smart air cooling and IP66 ingress protection for reliable operation in all environments
• Compliant with IEC/EN 62619, UN38.3, UL9540A, and other safety standards

Compatible Products:

• SigenStack Main Base 1.0C
• SigenStack BAT 12.0 (12.06 kWh, 1.0C)
• SigenStack Battery Controller M2 – 1.0C
• SigenStack Battery Cover

Benefits:

• Enables scalable, high-performance energy storage beyond the 5-module main base limit
• Simplifies installation and system expansion with integrated connectivity
• Provides a stable, professional foundation for additional battery modules
• Fully compatible with the Sigenergy modular ecosystem for residential and commercial applications

The SigenStack Sub Base 1.0C is an essential accessory for scalable, high-speed energy storage systems, delivering flexibility, safety, and seamless integration for expanding your 1.0C SigenStack battery setup.

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.