50kW/104kWh All-in-One Liquid-Cooled BESS | C&I Energy Storage with PCS
The 50kW/104kWh All-in-One Liquid-Cooled BESS Cabinet integrates battery, PCS inverter, and second-generation liquid cooling in one compact unit.
With cell temperature difference <3°C, it extends battery life by over 20%, delivers up to 8000 cycles (to 70% capacity at 25°C), and achieves max charging/discharging efficiency ≥96%.
IP65-rated and <10ms seamless on/off-grid switchover, this plug-and-play system is ideal for solar self-consumption, peak shaving, demand charge reduction, and reliable backup power.
50kW+104kWh All-in-One Liquid-Cooled Energy Storage Cabinet
The 50kW/104kWh all-in-one liquid-cooled Battery Energy Storage System (BESS) is a highly integrated, plug-and-play energy storage cabinet designed specifically for commercial and industrial (C&I) applications.
It combines Grade-A LiFePO4 battery packs, a second-generation active liquid cooling system, a built-in bidirectional PCS (Power Conversion System), and an intelligent Energy Management System (EMS) in one compact cabinet.
The advanced liquid cooling technology maintains cell temperature variance below <3°C, significantly improving efficiency, safety, and battery lifespan — extending cycle life by over 20% compared to traditional air-cooled systems.
With its integrated PCS, the system supports direct AC grid connection and seamless grid-tied / off-grid operation without requiring an external inverter. This all-in-one BESS cabinet is ideal for:
- Solar self-consumption and renewable energy integration
- Peak shaving and demand charge reduction
- Backup power and uninterruptible supply
- EV charging station support
- Microgrid and off-grid applications
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Second-Generation Liquid Cooling | Cell temperature difference <3°C, 20%+ longer cycle life, lower parasitic consumption, excellent high-temperature performance |
| Grade-A LiFePO4 Battery Cells | High safety, 8000 cycles (to 70% capacity at 25°C), long service life |
| Built-in Bidirectional PCS | Direct AC output (50kW rated), supports grid-tied and off-grid modes, <10ms seamless switchover |
| All-in-One Integrated Design | Plug-and-play installation, significantly reduced on-site labor and commissioning time |
| High Energy Density Cabinet | Compact footprint, ideal for space-limited industrial and commercial sites |
| Intelligent EMS & Monitoring | Remote scheduling, load tracking, demand control, OTA updates |
| Comprehensive Safety Protection | Multi-level protection + pack-level and cabinet-level fire suppression |
| Scalability | Modular design supports parallel connection for larger capacity needs |
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | EG-104KWH |
| System Type | All-in-One Liquid-Cooled C&I BESS with Integrated PCS |
| Rated Power / Output Power | 50 kW |
| Energy Capacity | 104.499 kWh |
| Battery Type | Grade-A LiFePO4 |
| Max Charge/Discharge Power | 110 kW (continuous), 120 kW (1 min), 130 kW (1s) |
| Rated Charge/Discharge Current | 220 A |
| Cycle Life | 8000 cycles (100% DoD to 70% capacity, 25°C) |
| Cooling Method | Second-generation active liquid cooling |
| Round-Trip / System Efficiency | >90% (system), max charging/discharging efficiency ≥96% |
| Discharge Temperature Range | -20°C ~ +55°C (typical) |
| Protection Rating | IP65 |
| Grid Connection | AC 400V/230V, 50/60Hz, Three-phase four-wire |
| Switchover Time (On/Off-grid) | <10 ms |
| Dimensions (W × D × H) | 1290 × 993 × 1725 mm |
| Weight | Approx. 1000 kg |
| Communication | CANBus, RS485, Ethernet |
| Certifications | CE (others pending) |
Applications
- Solar + Storage: Store excess PV generation for higher self-consumption.
Peak Shaving & Demand Charge Reduction: Reduce peak power demand and lower electricity bills.
Backup Power: Fast seamless switchover for critical loads during outages.
EV Charging Support: Buffer power demand and stabilize grid impact.
Microgrids & Off-Grid: Reliable independent power supply.
Installation & Compatibility
- True all-in-one design with built-in PCS — no external inverter required.
- Supports direct grid-tied and off-grid operation.
- PV input module available (customized according to project needs).
- Equipped with STS (Static Transfer Switch) for reliable power switching.
- Fast installation and commissioning — ideal for rapid deployment.
- Anti-reverse flow protection, high/low voltage ride-through, and remote monitoring via EMS
Why Choose EGBATT 104KWh Liquid Cooling Cabinet?
- Professional manufacturer with rich C&I energy storage project experience
- Advanced liquid cooling technology for superior performance and longevity
- Full safety design including pack-level and cabinet-level fire protection
- 5-year standard warranty (performance warranty available)
- Customizable solutions and strong technical support
Liquid Cooling vs Air Cooling Comparison
Parameter | Air-Cooled | This Liquid-Cooled System | Customer Benefit |
|---|---|---|---|
| Cell Temperature Variance | 5–15°C | <3°C | Uniform performance, slower degradation |
| Cycle Life Extension | Baseline | >20% | Lower total cost of ownership |
| System Efficiency | Lower | Higher (up to 96% charge/discharge) | More usable energy |
| High-Temp Operation | Limited | Excellent (up to +55°C) | Reliable in hot climates |
Frequently Asked Questions (FAQ)
Yes. It includes an integrated PCS (bidirectional inverter), allowing direct AC grid connection without an external hybrid inverter.
It provides better temperature uniformity (<3°C difference), higher efficiency, longer battery life, and lower noise compared to air cooling
Yes. It supports renewable integration. A PV input module can be customized based on your solar array.
Yes, with seamless <10ms switchover between grid-tied and off-grid modes.
Up to 8000 cycles (to 70% capacity at 25°C under proper operation).
Multi-level electrical protection + immersion-style fire suppression at both pack and cabinet levels.
Standard warranty: 5 years full coverage. Extended warranty up to 10 years is available
Yes – discharge from -20°C to +55°C. For charging, the range is 0°C to +50°C. The liquid cooling system actively manages temperature inside the cabinet
Yes. You can connect up to 10 cabinets in parallel, reaching a total of 1.04MWh capacity and 500kW power.
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Product & Packaging Details
Q: Do batteries include protection circuits（BMS) and connectors?
A:Protection: We supply batteries with BMS built in Protection Circuit Modules (PCM).
Connectors: We normally use standard like anderson,M8 lugs,Fast plugs or depends on OEM customer's demends.
Q: Are batteries Grade-A and brand new?
A: Yes, we use 100% brand new, Grade-A cells in all our batteries.
Q: Can you print our logo on the batteries?
A: Yes, we offer free custom logo printing with a minimal MOQ requirement.
Q: What is your standard packaging? Can it be customized?
A: Our standard is a white box per battery. We fully support customized packaging, including carton box and logo design.
Yes. EGbatt is a manufacturer located in Shenzhen, Guangdong, China. It designs and produces LiFePO4 battery packs for energy storage, electric forklifts, marine applications, golf carts, RVs, and UPS systems.
Based on automated production technology, the current product lead time is 15-25 days.
The company has strategic cooperation agreements with top manufacturers like EVE and REPT, and insists on using A+ tier One lithium iron phosphate cells for its solar batteries.
For 48V inverters, compatible brands include Victron Energy, Goodwe, Studer, Solis, LuxPower, and others. For high-voltage three-phase inverters, compatible brands include Atess, Solinteg, SAJ, Goodwe, and Solis.
EGbatt offers dealer customers a 10-year warranty and technical service for its energy storage battery products.
DoD describes how much of the battery's capacity has been used. A DoD of 100% means the battery is completely empty, while 0% means it is full.
SoC reflects the battery's charge level. A SoC of 100% means the battery is full, and 0% means it is empty.
C-rate, or power factor, indicates how quickly a battery can be charged or discharged relative to its capacity. A rating of 1C means the battery can be fully charged or discharged in one hour.
The battery uses Lithium Iron Phosphate chemistry and provides a cycle life of over 6,000 cycles at 90% Depth of Discharge, and over 10 years at one cycle per day.
kW (kilowatt) is a unit of power, measuring the rate of energy production or consumption. kWh (kilowatt-hour) is a unit of energy, measuring the total amount of work done or energy used over time.
EGbatt home batteries are suitable for both indoor and outdoor installation (depending on the model's protection level) and offer floor-standing or wall-mounted options. Common locations include garages, attics, or under eaves.
This depends on the load. As a realistic example, a 10kWh battery could run ten 100-watt light bulbs for 12 hours without recharging.
The number varies based on home size, energy consumption history, and personal goals (like which devices to run during an outage). For most systems, 2 or 3 batteries are installed. A detailed discussion of your needs is recommended for an accurate assessment.
Yes, it is possible, but it requires careful planning and significant investment. A true off-grid system needs a large enough solar array and sufficient battery storage to sustain your lifestyle. Cost and having an alternative energy source for when solar charging isn't possible are key considerations.
No. EGbatt focuses on building long-term relationships with business partners like battery distributors, solar equipment dealers, and installation contractors worldwide, not direct sales to end consumers.
EGBATT Battery Compatibility with Inverters
Perfect Matching with Mainstream Hybrid and On-grid Inverters
EGBATT lithium battery systems are tested for seamless compatibility with a wide range of inverter brands across global markets. Whether for residential, commercial, or utility-scale applications, our batteries support multiple communication protocols (CAN/RS485) and work with both low-voltage (40–60V) and high-voltage (100–1500V) inverter platforms.
- Low-Voltage System Compatibility (40–60V)
Low-voltage systems typically operate in the 48V-60V range and are widely used in home off/grid-connected solar systems. EGBATT lithium batteries offer seamless compatibility with a wide range of leading inverter brands in this range, including:
Deye, Growatt, GoodWe, ZZPower, Solis, Sinexcel, SRNE, Schneider Electric, Megarevo, AISWEI, SMA, Luxpower, Victron Energy, Afore, Hoymiles, INVT, Sofar, OutBack Power, SolaX Power, tbbpower, Sacolar, Sunsynk, Sosen, SMD Solar, Must, SOROTEC, Sunman, Voltronic Power, SAJ, and more. - High-Voltage System Compatibility (100–1500V)
High-voltage energy storage systems generally operate in the voltage range of 150V-1000V and are adapted to high-power inverters for commercial and industrial energy storage systems (80kWh-200kWh and above). EGBATT high-voltage lithium battery systems are fully compatible with leading inverter brands within this range, including:
Sol-Ark, INVT, Sinexcel, Luxpower, SClinTeg, Shanghai Nenergy, Deye, Growatt, Xina Electric, Hoymiles, Sunsynk, Hopewind, Solis, SOSEN, Megarevo, EcoCod, GoodWe, Sunways, Jingshi Technology, Kehua Tech, AISWEI, KOYOE, Sermatec, Afore, and more.
We offer integration support and testing for most mainstream hybrid and on-grid inverters. Contact EGBATT for compatibility details and custom solutions.
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