Empower your energy strategy with GSL Energy’s CESS-125K232, a high-efficiency Liquid cooling Battery Energy Storage System (BESS) engineered for grid resilience, industrial optimization, and clean power deployment. Designed with advanced LiFePO₄ (LFP280Ah) battery cells, this modular, AC-coupled container solution delivers 125kW continuous power output and 232.9kWh usable energy, meeting the demands of modern commercial and industrial infrastructures.
Key Technical Specifications
Model: CESS-125K232
Battery Type: LiFePO₄ (LFP280Ah)
Configuration: 260S1P (5 x 52S1P blocks)
Nominal Voltage: 832V
Voltage Range: 650V – 950V
Rated Energy Capacity: 232.9 kWh
Output Power: 125kW (AC)
Max Output Current: 145A
Cooling System: Liquid-cooled for optimal thermal control
Grid Connection: AC400V / 3P3W+PE or 3P3W+N+PE
Parallel Capability: Scalable up to 10 units (for > 2 MWh systems)
System Dimensions: 1376 × 1300 × 2050 mm
Weight: Approx. 3200 kg
Compliance & Certifications
Our system meets the highest international standards for safety, quality, and environmental reliability:
IEC/EN 62619 – Battery safety
IEC/EN 60730 & UL 60730 – Control systems
UN38.3 / UN3480 – Transportation safety
IEC/EN 62477 / IEC 61000 – Power electronics & EMC
GB/T 36276 – Chinese national energy storage standard
Where It Performs Best
Smart Factories & Warehouses – Smoothing load profiles and cutting peak demand charges
Remote or Off-grid Facilities – Reliable backup energy where grid power is limited or absent
Construction Sites – Clean, on-site power without diesel dependency
Microgrids & Hybrid Energy Systems – Balancing renewables with responsive storage
Backup for Telecom & Data Centers – Ensuring uptime during outages or grid instability
Why Choose the CESS-125K232?
Liquid Cooling: Superior thermal regulation enhances battery life and system efficiency
Flexible Integration: Easily pairs with inverters and EMS for grid-interactive or islanded operation
Factory-Backed Engineering: Manufactured by GSL Energy—ISO-certified, vertically integrated, and export-proven across 100+ countries
Plug & Perform: Pre-assembled and pre-tested, ready for fast field deployment
Scalable: Add capacity with up to 10 parallel units, simplifying multi-megawatt solutions
Contact Us
Looking to develop a scalable, reliable energy storage project?
Reach out to GSL Energy’s BESS team for engineering support, custom integration, and pricing:
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