250kW 522kWh Industrial Liquid Cooled Energy Storage System
The BSLBATT LC250-522 is a 250kW/522kWh all-in-one industrial liquid-cooled battery energy storage system. Featuring dual 261kWh LiFePO4 battery clusters with intelligent liquid cooling, it delivers high-capacity storage for energy-intensive operations including factories, mining sites, logistics hubs, and large-scale solar integration. The system supports peak shaving, demand management, and renewable energy time-shifting. Up to 4 units can be paralleled for MW-scale capacity expansion.
The Single-Cabinet Solution to Industrial-Scale Storage
DUAL-CLUSTER ARCHITECTURE. Two independent 261.2kWh battery clusters deliver 522kWh with 250kW continuous output. One cabinet instead of two.
INDUSTRIAL-GRADE POWER. 250kW rated with 1.1x continuous overload. Peak shaving for steel plants, mining operations, cement factories, and large logistics hubs.
EXTREME CLIMATE PERFORMANCE. Intelligent air cooling combined with liquid cooling maintains rated output across -20°C to 55°C. No derating at 50°C ambient.
HEAVY-DUTY CONSTRUCTION. 4.7 metric tons of galvanized SGCC steel, IP55 protection, gas fire suppression, 8,000+ cycles, 10-year warranty.
SCALABLE TO MW LEVEL. Start at 522kWh, scale to 2MWh. Parallel up to 4 cabinets with coordinated EMS. Fewer units to the same MW-scale capacity.
Most Customers Start Here with the LC250-522
Industrial Peak Shaving and Demand Management
Charge during off-peak hours when electricity rates are lowest, then discharge 250kW of continuous power during peak demand periods to reduce maximum demand charges. For industrial facilities on time-of-use tariffs, the LC250-522 can lower electricity costs significantly depending on the local rate structure and load profile.
At industrial scale, demand charges can run into tens of thousands per month. One cabinet flattening those peaks can pay for itself in under three years.
Large-Scale Solar Integration
Pair with rooftop or ground-mounted solar PV to store excess generation during the day and consume it during evening peak hours. The 522kWh capacity provides over 2 hours of continuous discharge at full rated power, covering the typical afternoon-to-evening transition when grid rates are highest.
Every kilowatt-hour stored from on-site PV and discharged on site displaces one purchased at peak rate. At industrial consumption volumes, the savings compound fast.
Port and Cold Chain Logistics
Ports, cold storage warehouses, and refrigerated distribution centers run high continuous loads around the clock. A power interruption means spoiled inventory and broken cold chains. The LC250-522 delivers 250kW of continuous output to buffer grid fluctuations and shave demand peaks, while the dual-cluster architecture provides built-in redundancy. If one cluster requires service, the other keeps the facility powered.
522kWh of capacity handles the sustained base load during peak tariff windows. For port operations with large crane and reefer loads, the storage absorbs demand spikes that would otherwise trigger costly penalty charges.
Industrial Microgrids and Smart Energy Systems
Integrate into industrial-scale microgrids alongside solar arrays, diesel generators, and grid connections. The LC250-522 communicates via Modbus RTU/TCP and Ethernet for real-time dispatch by third-party EMS or microgrid controllers. Up to 4 units can be paralleled for on-grid deployments, scaling from 522kWh to over 2MWh of total storage capacity.
One standardized high-capacity building block that integrates with your existing power infrastructure and scales with facility expansion.
Intelligent Liquid Cooling for Extreme Environments
The LC250-522 runs at full 250kW output in 50 degree heat. Most air-cooled systems start reducing power above 40 to 45 degrees Celsius. For industrial sites in hot climates, that gap determines whether the system delivers the capacity you paid for.
How it works
Each of the ten battery packs has an aluminum cold plate bonded directly to cell surfaces. A liquid coolant loop keeps every cell within a narrow temperature range. Below 40 degrees, the system runs on air cooling alone to save energy. Above that threshold, liquid cooling activates automatically.
What this delivers over time
Uniform cell temperatures across 8,000+ charge-discharge cycles. For sites running in 45 to 50 degree environments, this can mean the difference between a 15-year asset and one that needs pack replacement after 8. The cooling system pays for itself in avoided replacement costs alone.
Scalable from 522kWh to Over 2MWh
One LC250-522 handles most C&I projects under 500kWh. When your needs grow, add cabinets instead of replacing them. Each unit parallels with the others through a shared EMS, and every cabinet keeps its own independent BMS and fire suppression. A fault in one unit stays in that unit.
In on-grid configurations, the number of parallel units is limited only by your upstream transformer capacity. In off-grid configurations with an external TS Cabinet, up to 4 units deliver 1MW of power and over 2MWh of storage.
Need less capacity per cabinet or working in a tighter space? The LC125-261 delivers 125kW / 261kWh in a more compact form factor under 2 square meters.
Reach MW-scale with just 4 cabinets. Fewer foundations, fewer cable runs, fewer commissioning visits. Every unit eliminated from the layout is cost and schedule risk removed.
| Configuration | Units | Power | Capacity |
| Single cabinet | 1 | 250kW | 522kWh |
| Dual parallel | 2 | 500kW | 1,044kWh |
| Full parallel (off-grid max) | 4 | 1,000kW | 2,089kWh |
522kWh. One Cabinet. Zero Compromise.
Most 500kWh projects require two cabinets, two foundations, two sets of cabling, and two commissioning visits. The LC250-522 puts 522kWh into one.
Two independent 261.2kWh battery clusters share a single enclosure with a 250kW PCS (two 125kW modules), BMS, EMS, and gas fire suppression. One foundation pour, one crane lift, one cable run. Half the site work of a two-cabinet setup.
The two clusters operate independently at the BMS level. If one cluster needs maintenance, the other keeps running. You get the redundancy of a multi-cabinet system inside a single 1.88 x 1.30m footprint.
At 4.7 metric tons, this is a permanent installation. BSLBATT provides foundation specification drawings and installation guidance as part of the project support package.
Built for the Toughest Industrial Environments
nstall it at a coastal cement plant, a desert mining site, or a tropical logistics hub. The LC250-522 is built for all of them.
IP55 system rating keeps out rain, dust, and salt spray. All ten battery packs are individually sealed to IP67. 4.7 metric tons of galvanized SGCC steel with powder coating handles corrosion, vibration, and weather. Operating range covers -20 to 55 degrees Celsius.
Safety runs six layers deep:
Cell Safety
314Ah LiFePO4 cells with 80% lower thermal runaway risk and 90% lower overcharge risk compared to NMC chemistry. Cluster-level BMS monitors every cell across both clusters for voltage, temperature, and state of charge in real time.
Electrical Safety
Pack-level manual service disconnect (MSD) isolates each of the ten packs independently during maintenance. Cluster-level fuse and circuit breaker protection, plus AC/DC side protection, prevent fault propagation between clusters and through the system.
Structural Safety
4.7 metric tons of galvanized SGCC steel case construction with durable powder-coated finish. Thickened base provides enhanced stability for permanent outdoor floor-standing installation in seismic and high-wind zones.
Environmental Safety
All ten battery packs are individually sealed to IP67. The complete system achieves IP55-C3 classification for outdoor deployment in rain, dust, salt spray, and corrosive industrial atmospheres.
Fire Safety
Pack-level and cluster-level dual fire suppression system (2-Level FSS) uses gas extinguishing agents. Directed pressure relief valves vent gases safely. Intelligent fire safety monitoring detects early-stage thermal events across both clusters simultaneously.
Data Safety
Station-level safety analysis aggregates data from BMS, PCS, and EMS across both clusters to identify system-wide anomalies. Data cloud encryption protects operational data. IoT access control restricts system configuration to authorized personnel.
BSLBATT backs the LC250-522 with a 10-year warranty covering battery packs, PCS, and all integrated components. Deploy it in the harshest conditions your site can throw at it. Six layers of protection, industrial-grade steel, and a 10-year factory warranty mean you focus on production, not equipment babysitting.
System-Level Off-Grid and Backup Power Solution
For sites with unstable grid connections or frequent outages, BSLBATT offers a complete system-level off-grid solution by pairing the LC250-522 with an external Transfer Switch (TS) Cabinet and Static Transfer Switch (STS).
When the grid goes down, the system switches to off-grid mode automatically, powering critical loads from stored energy and on-site generation sources such as diesel generators or solar PV. When grid power returns, the system reconnects without manual intervention.
Up to 4 LC250-522 units can run in parallel with a single TS Cabinet, delivering 1MW of off-grid power and over 2MWh of capacity. Contact the BSLBATT project team for system design support and TS Cabinet specifications.
LC250-522 Industrial Energy Storage System FAQ
Q1: How does the dual-cluster architecture work?
The BSLBATT LC250-522 contains two independent 261.2kWh battery clusters inside a single cabinet, totaling 522.4kWh. Each cluster has its own BMS and liquid cooling loop. The two clusters share a common PCS (two 125kW modules) and EMS. If one cluster requires maintenance, the other can continue operating, providing built-in redundancy without additional cabinets.
Q2: Can the LC250-522 operate at full power in extreme heat?
The BSLBATT LC250-522 uses intelligent air cooling combined with liquid cooling to maintain rated 250kW output across the full -20 to 55 degrees Celsius operating range, with derating beginning above 45 degrees Celsius. This makes it suitable for hot-climate deployments in desert, tropical, and equatorial regions.
Q3: How does the LC250-522 compare to the LC125-261?
The BSLBATT LC250-522 delivers twice the capacity (522kWh vs 261kWh) and twice the power (250kW vs 125kW) from a single cabinet. It is designed for large industrial facilities and heavy loads. The LC125-261 is more compact (0.93 x 1.30m vs 1.88 x 1.30m) and suited for commercial sites where space and noise are primary concerns. Both models use the same 314Ah LiFePO4 cells and liquid cooling technology.
Q4: Can the LC250-522 operate off-grid?
The BSLBATT LC250-522 is a grid-tied energy storage system. For off-grid or backup power applications, BSLBATT offers a system-level solution that pairs the LC250-522 with an external Transfer Switch (TS) Cabinet and Static Transfer Switch (STS). This configuration enables seamless grid-to-island switching. Contact the BSLBATT team for off-grid system design support.
Q5: How many LC250-522 units can be paralleled?
In on-grid configurations, the number of parallel units depends on the upstream transformer capacity. In off-grid system configurations with a TS Cabinet, up to 4 BSLBATT LC250-522 units can operate in parallel, delivering up to 1,000kW of power and over 2,000kWh of storage capacity.
Q6: What warranty does the LC250-522 come with?
BSLBATT provides a 10-year warranty on the LC250-522 system, covering battery packs, PCS, and all integrated components. The LiFePO4 battery packs are rated for over 8,000 cycles at 25 degrees Celsius with 90% depth of discharge.
Get LC250-522 Pricing and Technical Support
The BSLBATT LC250-522 is manufactured at the BSLBATT production facility in Huizhou, China, and available for global distribution. Whether you are an EPC contractor designing an industrial peak shaving system, a mining company evaluating on-site energy storage, or a distributor expanding into high-capacity C&I solutions, the BSLBATT team provides project-level technical support from system design through commissioning. Request a quotation or schedule a technical consultation to discuss your project requirements.
| Model | LC250-522 | |
| Battery Side Parameters | ||
| Cell Type | 314Ah / 3.2V LFP | |
| Battery Cluster Rated Voltage | DC832V | |
| Battery Side Rated Capacity | 314Ah*2 | |
| Series / Parallel Configuration | 1P*52S*5S | |
| Battery Side Rated Energy | 522.4kWh (261.2kWh*2) | |
| Battery Side Operating Voltage Range | DC728.0V~910.0V | |
| Rated Charge / Discharge Current | 157A*2 | |
| AC Side Parameters (PCS) | ||
| Rated AC Voltage | AC400V, 3W+PE / 3W+N+PE | |
| Rated AC Frequency | 50 / 60Hz (±5) | |
| Rated / Max. AC Power | 125kW / 137kW | 250kW / 275kW |
| Rated / Max. AC Current | 180A / 200A | 360A / 400A |
| Power Factor | -1~+1 | |
| Current THDI | <3% | |
| Overload Capability | 1.1x (continuous) | |
| Isolation Type | Non-isolated | |
| Operation Mode | Peak-valley arbitrage, demand management | |
| Protection | Over-temperature, low-temp charge protection, over-current, short circuit, over / under voltage, DC bus protection |
|
| General Parameters | ||
| Operating Temperature | -20℃~+55℃ (derating above 45℃) | |
| Operating Humidity | 10%~90%RH (non-condensing) | |
| Altitude | 3000m | |
| Installation Method | Floor standing | |
| Cooling Method | Intelligent Air Cooling+Liquid Cooling | |
| Fire Protection | Gas fire extinguishing system | |
| Communication* | RS485, Ethernet, Modbus RTU / TCP | |
| Protection Rating | IP55 | |
| Dimensions (WxDxH) | 1883*1300*2020 (±5mm) | |
| Weight | About 4.7T | |
| Warranty | 10 years | |
