Deye BOS-GL40 / BOS-GH40 Small-Scale C&I ESS Solution | Rack-Mounted Battery | UL9540A UL1973 Certified | 10 Years Warranty

Deye Summer BOS Series: Small-Scale C&I ESS Solution

• Deye BOS‑GL40 (Low‑voltage) and BOS‑GH40 (High‑voltage)are rack‑mounted, LiFePO₄ battery modules (5.12 kWh per unit) that combine into scalable ESS stacks with nominal energies up to ~41 kWh 

• Designed for small to medium C&I applications such as peak‑shaving, backup power, load‑shifting, and microgrids

Key Features Across the Series:

1. Convenient: Features a 19-inch embedded design, supports optional USB and Wi-Fi upgrades, and allows for remote monitoring and upgrades (compatible with Sol-Ark inverters). Multiple battery modules can be connected in parallel for scalability.
2. Safe and Reliable: Utilizes LFP (LiFePO4) battery chemistry for safety, long lifespan, and high energy density. The modules are non-toxic, non-polluting, and eco-friendly. They can operate in a wide temperature range from -20°C to 55°C.
3. Intelligent Functions: Equipped with protection against over-discharge, over-charge, over-current, and over-high or low temperatures. They automatically manage charge/discharge cycles and balance current/voltage. These batteries also feature low self-discharge (up to 6 months without charging on the shelf) and no memory effect, offering excellent performance in shallow charge and discharge scenarios.

The BOS-GL40 is designed for rack mounting and come with a 10-year warranty, ensuring long-term performance and peace of mind. They support a recommended 90% depth of discharge and can operate at altitudes up to ≤2000m with a humidity range of 5% ~ 85%RH. Status indicators (Yellow for Battery High Voltage Power On, Red for Battery System Alarm) provide clear operational feedback.

Why It Matters for Small‑Scale C&I

These modules offer a perfect balance:

• Scalable architecture—ideal for 40 kWh systems with option to scale higher via stacking

• High cycle durability supports frequent cycling, peak management, and backup applications.

• Flexible integration, compatible with industry‑standard hybrid inverters (e.g., Deye and Sol‑Ark)

Technical Specs (BOS‑G40)

Product Expansion:

Download

Datasheet:
Deye_BOS-GL60_BOS-GH60_GH40_Datasheet.pdf

User Manual:
Deye BOS-GH User Manual
Deye BOS-GL User Manual

Statement
Deye statement-on-battery-expansion-and-insulation-fault.pdf

ABOUT Deye

Ningbo Deye Technology Co., Ltd. is a large-scale manufacturing technology enterprise integrating R&D, design, production, sales, and services.Driven by innovation, with a global vision and forward-looking thinking, Deye is devoted to innovation and change following the trend of the industry, producing “intelligent, healthy, energy-saving, and environment-friendly” products.
Relying on the advantages of China’s vast market and powerful Internet technology resources, Deye has become a brand rooted in China and well-known in the world, an innovator and leader in new energy inverter technology and frequency conversion control core technology, a leading brand in the high-end environmental electrical appliance industry and a famous company in the air-conditioning heat exchanger industry.
So far, Deye has realized a layout for its diversified development drawing on the dual-core drives of its independent brand and supporting products.