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XSY 50 kVa, 186 kWh All-in-one BESS Battery Storage System | Commercial Solar Battery Energy Storage Manufacturers Price:¥

​186 kWh BESS air-cooled all-in-one energy storage solution company
The XSY-BESS-50K186 is a 50 kVa, 186 kWh all-in-one BESS battery storage system designed for both grid-tied and off-grid applications. As one of the leading battery energy storage system manufacturers, XSY ENERGY provides a fully integrated and pre-configured solution to minimize installation time and reduce project complexity.
This All-in-one commercial solar battery storage system comes with inverters, battery trays, racks, advanced Battery Management System (BMS), microgrid controller, HVAC, fire suppression, islanding switch, and outdoor-rated enclosure. It is engineered to deliver safety, reliability, and long service life for commercial and industrial applications.

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Detailed content Specification parameter Product packaging

Model XSY-BESS-50K186
System Specification
Nominal Output Power/UPS Power (W)50000
AC Output Frequency and Voltage50/60Hz; 3L/N/PE 220/380, 230/400Vac
Grid TypeThree phase
Energy Configuration (kWh)186.42
Dimension (W x D x H, mm)1400x1100x2150 (no contain inverter)
Weight Appr. (kg)1864.00 (no inverter)
AC Output Rated Current (A)75.8
Battery Operating Voltage (V)500 ~ 800
Battery ChemistryLiFePO4
IP Rating of EnclosureIP55
System CertificationUN38.3, IEC62619, CE, CEI 0-21, VDE-AR-N 4105, IEC 62109
Installation StyleFloor-Mounted
Warranty10 years
Inverter Technical Specification
Max. PV Input Power (W)65000
Max. PV Input Current (A)36+36+36+36
Rated PV Input Voltage (Vdc)600
Start Up DC Voltage (Vdc)180
MPPT Voltage Range (Vdc)150-850
Max. PV Short-circuit Current (A)55+55+55+55
Number of MPPT4
Peak Power (off grid)1.5 time of rated power, 10s
Power Factor0.8 leading to 0.8 lagging
THD<3%
DC injection current (mA)<0.5ln
DisplayLCD
Operating Temperature Range (℃)-40~60( >45℃ derating)
Relative Humidity15% ~ 85% (No Condensing)
Dimension (W x D x H, mm)527x294x894
Inverter CommunicationCAN, RS485, WIFI, ETH
Safety EMC / StandardIEC/EN 62109-1, IEC/EN 62109-2, IEC/EN, 61000-6-1, IEC/EN 61000-6-2, IEC/EN61000-6-3, IEC/EN 61000-6-4
Grid RegulationVDE4105, IEC61727/62116,VDE0126, AS4777.2,CEI 0 21, EN50549-1, G98, G99, C10-11, UNE217002,NBR16149/NBR16150
Max. Efficiency97.6%
Max. charging/discharging efficiency91%
Max Parallel connection sets10
Battery Technical Specification
Battery Module Nominal Voltage (V)665.6
Battery Capacity (Ah)280.42
Battery Energy (kWh)186
BMS CommunicationCAN
BMS parallel support connection3sets
Max Charge & Discharge Current (A)100
Operating Temperature RangeCharge: 0~55℃ / Discharge: -20℃~55℃
Cycle Life≥10000(@25℃±2℃,0.5C/0.5C,70%EOL)
Short Circuit ProtectionYES
Over Current ProtectionYES
Over Charge ProtectionYES
Over Temperature ProtectionYES
Cell Over Voltage ProtectionYES
Cell Over Under ProtectionYES
Cell Discharge ProtectionYES


XSY-BESS-50K186 50 kva, 186 kwh battery all-in-one storage air-cooled storage container energy storage system

Product Description

Safety Cert

UN38.3, IEC62619, CE, CEI 0-21, VDE-AR-N 4105, IEC 62109

Fast Installation

Pre-configured system reduces on-site installation time.

Easy Scalability

Modular design allows capacity expansion up to 180kWh.

Powerful Performance

Supports 180kW rated DC power, with 50A charge/discharge current (recommended), 100A (nominal), and up to 125A peak discharge for 2 minutes.

Safety and Reliability

Features Tier 1 LiFePO4 batteries with outstanding thermal stability and safety; integrated multi-level BMS continuously monitors, optimizes, and balances the system.

Longevity and Efficiency

More than 10,000 cycle life, smart BMS system for optimal performance and protection, IP55 waterproof rating, and an operating temperature range of -20°C to 55°C.



about XSY Energy

As the leading vertically integrated manufacturer of lithium iron phosphate battery systems, XSY ENERGY has provided various battery solutions for nearly all kinds of ESS applications.  Thanks to our self-developed core technology in cells/BMS/system design, XSY ENERGY has delivered more than 138+ countries serving 100,000+ users.


why choose us?

10+ years of professional manufacturing experience.

Products have passed multiple certificates, very reliable.

Sold to 138+ countries, very popular around the world.

One-to-one customer service, 7/24 online reply.

10-15 years warranty, no need to worry about after-sales issues.

Professional R&D team to customize energy storage solutions for you.

Compatible with most of the available Hybrid inverters.

Affordable price, increase your profits.

Containerized BESS battery storage system with LiFePO4 technology by XSY ENERGY


industrial and commercial energy storage Cases

The XSY-BESS-50K186 represents the next generation of modular, containerized battery energy storage systems developed by a global leader among battery energy storage system companies.   With a scalable design, it can be expanded up to 180kWh capacity, making it adaptable to diverse energy storage needs.

Whether integrated with solar PV or operating independently, this commercial solar battery storage system ensures reliable backup power and peak shaving for businesses, industrial parks, and microgrids.   Equipped with Tier-1 LiFePO₄ lithium iron phosphate batteries, the system delivers excellent safety, thermal stability, and long cycle life.


Key Features:

All-in-one containerized BESS battery storage system with integrated inverter and protection devices

Manufactured by a trusted battery energy storage system company with global project experience

Air-cooled design for stable operation in harsh outdoor environments

Advanced BMS for system optimization and cell balancing

Pre-configured solution reduces onsite engineering and installation time

Scalable architecture supports multiple commercial solar battery storage systems in parallel


By choosing XSY ENERGY, clients benefit from working directly with one of the top battery energy storage system manufacturers that specialize in BESS battery storage systems for both commercial and industrial applications.