The LES-40W20-PS is a compact and flexible three-phase commercial and industrial energy storage system designed to support PV integration, load management, and reliable power supply in complex operating environments. With 40 kWh battery capacity and 20 kW rated output, it delivers stable, high-quality power for diverse C&I applications.
Engineered to support 100% three-phase unbalanced loads, the system ensures consistent performance under uneven load conditions. It features high-power PV access up to 30 kW and dual MPPTs, enabling efficient energy harvesting and seamless integration with rooftop or ground-mounted photovoltaic systems. Multiple units can be operated in parallel to meet higher power or capacity requirements.
The LES-40W20-PS adopts a maintenance-free, air-cooled design with intelligent dehumidification, effectively preventing condensation and improving system reliability in humid environments. Remote upgrade capability and cloud-based operation allow real-time monitoring, system optimization, and reduced on-site maintenance.
With IP54 protection, integrated aerosol fire suppression, and support for Modbus and IEC 104 communication protocols, the system is built for safe, long-term operation. Its modular structure enables easy installation, flexible expansion, and simplified maintenance, making the LES-40W20-PS an ideal solution for PV-ESS integration, peak shaving, backup power, and distributed energy applications.
| Model | LES-40W20-PS |
| Battery Parameters | |
| Charge/Discharge Rate | 0.5C |
| Rated Voltage [V] | 409.6 |
| Operating Voltage Range [V] | 358.4~467.2 |
| Rated Cell Capacity [Ah] | 100 |
| Rated Capacity [kWh] | 40 |
| Configuration | 1P128S |
| PV Parameters | |
| PV Max. Input Power [W] | 30000 |
| PV Max. Input Voltage [V] | 1000 |
| MPPT Operating Voltage Range [V] | 200~960 |
| MPPT Full Load Operating Voltage [V] | 450~850 |
| No. of MPPTs / Max. Strings per MPPT | 2/2 |
| Max. MPPT Input Current [A] | 50(25/25) |
| AC Parameters | |
| Rated Output Power [kW] | 20 |
| Max Output Power [kVA] | 22 |
| Max Output Current [A] | 31.8 |
| Rated Grid Voltage [V] | 3/N/PE,230/400 |
| Rated Grid Frequency [Hz] | 50/60 |
| Power Factor | 1 (0.9 leading to 0.9 lagging) |
| THDi | ≤3% (at rated power) |
| General Parameters | |
| Ingress Protection Rating | IP54 |
| Communication Method | RS485,CAN |
| Communication Protocol | Modbus,IEC104 |
| Operating Temperature Range [°C] | -20~+50 |
| Cooling Method | Air Cooling |
| Fire Protection System | Aerosol |
| Max Altitude [m] | 4000 (>2000 Derating required) |
| Transportation Method | Integral transportation |
| Relative Humidity | 0~95%, Non-condensing |
| Dimensions(W*D*H) [mm] | 1395×1000×1800 |
| Weight[kg] | 1500 |
Our factory
FAQ
Q: Is there a process of testing the products in place before they are shipped out?
A: Absolutely. Prior to dispatching each consignment, we subject all products in the batch to comprehensive testing. This is done to confirm that every single item meets the established quality criteria and is fit for delivery. Our strict pre - shipment testing regime is an integral part of our commitment to providing you with products of the highest standard.
Q: Is there a minimum quantity per order that I need to be aware of for placing an order with your company?
A: Yes, there is a minimum order quantity requirement. Typically, the minimum order quantity is set at one unit per order. This standard helps us manage our production schedules and resources effectively while still being able to serve customers with smaller initial needs.
Q: What sorts of delivery methods do you offer for getting the products to the customers?
A: Sea freight is one of the shipping options we are able to provide for transporting your goods.
Q: Is it possible for us to pay a visit to your factory prior to placing an order?
A: Absolutely! We wholeheartedly welcome you to visit our factory. Establishing a face - to - face connection is an excellent way to initiate a strong and mutually beneficial business relationship. We believe that such a visit will provide you with valuable insights into our operations, production capabilities, and quality control processes, which are essential for building trust and confidence in our partnership.
Q: Is there a possibility for us to act as your agent?
A: Certainly! We're delighted to explore an agency partnership with you. Currently, we're running significant market - wide promotions. To get all the specific information regarding the agency terms and our promotional strategies, kindly reach out to our overseas manager. We're looking forward to starting this exciting collaboration and achieving great success together.
Hot Tags: commercial battery storage 40kwh, China commercial battery storage 40kwh manufacturers, suppliers, factory, Industrial Battery Storage Systems, Integrated Energy Storage System, Battery Power Storage Systems, Commercial Energy Storage Solutions, Commercial and Industrial Energy Storage, c i ess