Smart Dispatch BESS Infrastructure: ST835CS-4HPowerStack | 835kWh Liquid-Cooled Cabinet with Active Cell Equalization
Wholesale the ST835CS-4HPowerStack (835kWh, Liquid-Cooled) BESS for your commercial projects. Features Tier-1 LFP cells, active cell balancing, EMS smart dispatch, and a 10-year performance warranty. Maximize ROI with turnkey global delivery and local O&M support.
Product Snapshot: The ST835CS-4HPowerStack C&I Energy Storage System
Designed for the rigorous demands of industrial peak shaving and EV supercharging infrastructure, the ST835CS-4HPowerStack is a 835kWh, liquid-cooled Battery Energy Storage System (BESS) cabinet. This unit integrates Tier-1 LFP cells, an active balancing BMS, and a smart EMS for grid dispatch. As a direct source from a certified manufacturer, we offer global shipping, a 10-year performance warranty, and local O&M support to ensure your project’s long-term ROI.
Direct Sourcing Advantages & Supply Assurance
Choosing the ST835CS-4HPowerStack means partnering with an established energy storage manufacturer. Our supply chain advantages guarantee lead times as low as 4-6 weeks for FCL orders, with full sea shipping insurance and door-to-door delivery options for major ports worldwide (Rotterdam, LA/Long Beach, Singapore, etc.). We provide complete turnkey PV-storage-charging solutions, backed by a 10-Year Performance Warranty (80% End-of-Life capacity retention) and a network of certified local O&M partners for rapid field support.
Advanced Active BMS Balancing & Deep Dive into Safety
The ST835CS-4HPowerStack’s proprietary BMS performs active cell equalization at the module level, mitigating capacity drift and extending cycle life to over 6,000 cycles @ 90% DoD. The liquid cooling system maintains cell temperature variance within ±1.5°C, ensuring stable output even at 1C charge/discharge rates. A multi-level fire suppression system (aerosol + gas) with dedicated exhaust channels meets UL 9540A thermal runaway propagation standards.
Technical Specifications (Verified Parameters)
All metrics are factory-tested under 25°C ±2°C ambient conditions. The system supports parallel expansion up to 8 units (6.68MWh) via a common DC busbar, making it ideal for scaling micro-grid projects.
| Technical Feature | Specification |
|---|---|
| Battery Chemistry | Tier-1 LFP (LiFePO4) Prismatic Cells |
| Usable Energy Capacity | 835 kWh (100% DoD, 90% max recommended for cycle life) |
| Nominal Voltage / Voltage Range | 1331.2 V / 1168V – 1498V DC |
| Cooling / Thermal Control | Active Smart Liquid Cooling (Ethylene-Glycol), ΔT ≤ 1.5°C between cells |
| Max Charge / Discharge Power | 1C / 1C (835kW continuous) |
| Round-Trip Efficiency (DC side) | ≥ 90% @ 0.5C, 25°C |
| Cycle Life | 6,000 cycles @ 90% DoD, 25°C to 80% EoL capacity |
| Safety Certifications (Base) | IEC 62619, IEC 62477, UN38.3, CE |
| System Communication Protocols | Modbus TCP/RTU, CAN 2.0, IEC 61850, Optional 4G/Wi-Fi |
| Dimensions (W x D x H) | 1400mm x 1100mm x 2350mm (per cabinet) |
| Protection Rating | IP54 (Outdoor rated, dust-tight and water-resistant) |
| Fire Suppression | Aerosol + Novec 1230, Dual-trigger (BMS + centralized) |
Application Scenarios: Micro-grid Deployments & EV Supercharging Hubs
Grid Peak Shaving for Industrial Parks
Program the ST835CS-4HPowerStack to discharge during 4-hour peak tariff windows, directly reducing demand charges by up to 30%. Its seamless on/off-grid transition (switchover <20ms) protects sensitive CNC machinery from brownouts.
Ultra-Fast EV Charging Buffer
Pair the cabinet with 360kW DC superchargers. The 835kWh capacity buffers grid connection limits, enabling 8-10 simultaneous high-power charging sessions without demand spike penalties. The liquid cooling system handles sustained 800A discharge pulses with zero derating.
Global Sea Shipping Security & Local O&M Linkage
All units are shipped under UN38.3 certification, packed in reinforced seaworthy crates with real-time vibration logging. Upon arrival, our regional O&M partners provide commissioning, remote 24/7 EMS monitoring, and on-site corrective maintenance with a 48-hour SLA.
B2B Procurement & Certification Q&A
- What are the required certifications for EU and North America?
- The ST835CS-4HPowerStack is fully IEC 62619, IEC 62477, UL 1973, and UL 9540 (pending) certified. We provide full compliance documentation for local utility interconnection applications.
- What is the factory lead time for a 10-unit project?
- Current lead time for FCL (20′ GP) orders is 4-6 weeks from deposit. LCL sample orders ship within 2-3 weeks. All lead times are guaranteed in the sales contract.
- How is the 10-year performance warranty structured?
- The warranty covers EoL capacity ≥80%, round-trip efficiency ≥85% (DC side), and all BMS/PCS electronics. We pre-position spare power modules and BMS boards in key regional hubs.
- Can this cabinet be integrated with existing PV inverters?
- Yes. The EMS supports Modbus TCP/RTU, CAN 2.0, and IEC 61850. We provide free remote integration support for major inverter brands (SMA, Sungrow, Growatt, etc.).
- What is the minimum order quantity (MOQ) for wholesale pricing?
- MOQ is 2 units (1.67MWh). For 20+ units, we offer additional trade terms (e.g., 30% deposit, 70% against Bill of Lading) and OEM branding options on the cabinet exterior.
Reviews
There are no reviews yet.