Products

Energy storage and power solutions covering all scenarios

Solar Lithium Stackable Battery 20kwh 51.2v Deep Cycle

Solar Lithium Stackable Battery 20kwh 51.2v Deep Cycle

This stackable lithium iron phosphate battery system is a modular, scalable energy storage solution designed for home energy storage. Up to 16 modules can be connected in parallel, providing a total capacity of 160 kWh. With over 8,500 cycle life, a service life exceeding 10 years, and advanced battery management system (BMS) technology, this system offers safe, reliable, and efficient energy storage for a variety of off-grid and hybrid inverter systems.
Contact Us →

Product Details

This energy storage system is suitable for residential energy storage. One system can meet the electricity needs of the entire house. The stacked battery packs have high energy density, offer versatile installation options, save space, and are suitable for various installation environments. The modular design can meet your ever-changing electricity needs, allowing you to easily meet future challenges.

1-2512031H143F7

Superior Long-Term Performance: The product uses top-quality lithium iron phosphate (LiFePO₄) cells, ensuring excellent safety and thermal stability. At 80% deep discharge, its cycle life exceeds 8500 cycles, meaning over ten years of reliable service.


True Plug and Play: The system features a built-in intelligent battery management system (BMS) with automatic addressing. No complex setup is required during installation; multiple units can be connected in parallel, greatly simplifying the installation process and reducing maintenance costs.


Flexible Expansion, Adaptable to Needs: Adopting a modular architecture design, the single-system capacity is 20.48kWh. Users can easily connect up to 16 units in parallel to expand the total energy storage capacity to 320kWh, perfectly adapting to future growth in various residential or small commercial scenarios.


Convenient User Experience: The floor-standing, compact structure with bottom casters makes movement and positioning easy and effortless. An intuitive touchscreen interface allows users to monitor system operating data and status in real time, putting them under complete control.

Product Parameter
Battery TypeLiFePO4
Nominal Voltage51.2 V
Nominal Capacity400 Ah
Wireless communicationBluetooth (Use the APP)/Wi-Fi(Connect to the Internet)
Nominal Energy20kwh
CommunicationCAN/RS485/232
Screen3.5-inch touch screen
Recommended Charge Current≤100 A
Recommended maximum load power≥8.2 kW
Ultimate Maximum load power≥6.2 KW
Recommended Charge Voltage57.6V
BMS Charge Cut-Off Voltage58.4V
Discharge temperature range-30 ~ 60 ºC
Unit Dimensions (L x W x H)726*440*266
Gross Weight120KG
Enclosure ProtectionIP65
CertificationsUN38.3/ IEC62619
Cycle life8500 Cycles
Warranty Duration10years
In tems of safteyEquipped with fire extinguishing system


Scene usage

  • cb4ba80aa3f09e467632b0f4f0430092
    Spain
    Energy storage system: 625kwpcs+1305kwh liquid cooling battery all in one cabinet
    Application scenario: Farm
    Date of shipment:May,2025
    Application:A European farm uses five
    125kW/261kWh cabinets to store solarenergy and ensure backup power for
    critical operations
  • Energy storage system: 2sets 125kw pcs+261kwh liquid cooling battery all in one cabinet</br>Application scenario:Renewable Energy Community in Europe</br>Delivery data:Oct,2025</br>Application:Deploying PV </br>250kW/522kWh cabinet enables affordable solar power, with excess energy stored for reliable supply.
    Poland
    Energy storage system: 2sets 125kw pcs+261kwh liquid cooling battery all in one cabinet
    Application scenario:Renewable Energy Community in Europe
    Delivery data:Oct,2025
    Application:Deploying PV
    250kW/522kWh cabinet enables affordable solar power, with excess energy stored for reliable supply.
  • Energy storage system: 2sets 125kw pcs+261kwh liquid cooling battery all in one cabinet</br>Application scenario :Estonia</br>Delivery data:Mar,2026</br>Application:With commercial electricity at ~€0.156/kWh in Estonia, two  125kW/261kWh systems are deployed for peak shaving and load shifting.
    Estonia
    Energy storage system: 2sets 125kw pcs+261kwh liquid cooling battery all in one cabinet
    Application scenario :Estonia
    Delivery data:Mar,2026
    Application:With commercial electricity at ~€0.156/kWh in Estonia, two 125kW/261kWh systems are deployed for peak shaving and load shifting.
  • Energy storage system: Energy storage system: 2* 125kW / 261kWh Liquid Cooling Cabinet</br>Application scenario:Factory</br>Date of shipment:July,2025</br>Application:Two 125kW/261kWh hybrid cabinets with 200kW MPPT enable a Solar + ESS + DG solution, ensuring 24/7 power for a Philippine factory.
    Philippines
    Energy storage system: Energy storage system: 2* 125kW / 261kWh Liquid Cooling Cabinet
    Application scenario:Factory
    Date of shipment:July,2025
    Application:Two 125kW/261kWh hybrid cabinets with 200kW MPPT enable a Solar + ESS + DG solution, ensuring 24/7 power for a Philippine factory.
  • Energy storage system: 2* 125kW / 261kWh Liquid Cooling Cabinet </br>Application scenario:Farm</br>Delivery data:Dec,2025</br>Application:A Thailand farm uses two 125kW/261kWh all-in-one cabinets to optimize peak/off-peak usage and reduce energy costs.
    Thailand
    Energy storage system: 2* 125kW / 261kWh Liquid Cooling Cabinet
    Application scenario:Farm
    Delivery data:Dec,2025
    Application:A Thailand farm uses two 125kW/261kWh all-in-one cabinets to optimize peak/off-peak usage and reduce energy costs.
  • Energy storage system:2* 125kW / 261kWh Liquid Cooling Cabinet</br>Application scenario :Industrial park</br>Delivery data:May,2025</br>Application:This project features an AC-coupled solar + ESS system with two  125kW/261kWh cabinets, storing excess solar energy and supplying loads during peak hours to reduce grid dependence.
    Italy
    Energy storage system:2* 125kW / 261kWh Liquid Cooling Cabinet
    Application scenario :Industrial park
    Delivery data:May,2025
    Application:This project features an AC-coupled solar + ESS system with two 125kW/261kWh cabinets, storing excess solar energy and supplying loads during peak hours to reduce grid dependence.

Production Line

  • Airtightness Test
  • Box Assembly
  • EOL Test
  • Left Airtightness Test
  • Laser Welding
  • Right-Laser Cleaning
  • Left 2 - Polaroid Photo
  • Insulation Testing

FAQ

Q:What is your lead time for the mass production?
A:General speaking, about 25-30 days depending on different items after getting down payment and confirmation about the samples.


Q:What kind of certificates do you have?
A:We can provide CE, ROHS, FCC, IEC62133, MSDS, UN38.3 & etc. if your need.


Q:Are you a factory or a trading company
A:We are a professional rechargeable lithium-ion battery and LifePO4 battery manufacturer, welcome to visit.


Q:What information do you need to make a customized battery pack?
A:We need the details below:
1. Size of the battery pack you need in mm.
2. Capacity of the Battery pack.
3. Voltage of the battery pack.
4. Max discharge current.
5. Cable and connector types you need.
6. Casing and Terminals if required.
7. Any protection circuits you may need.


Q:Are you battery real capacity?
A:All of our battery cells with Grade A, 100% new and real capacity.


Q:What is your company's advantage?
A:We only supply high level quality of lithium battery and we gurantee on-time shipment, we also provide excellent after sales service.


Q:Do you accept OEM/ODM?
A:Yes, it is avaliable.


Q:Do you provide after-sales serive?
A:Yes, the warranty is usually 3 years, if any quality problems on our side in this period, we can send new one as replacement.


Q:Can I have samples to test? And what is lead time for sample order?
A:Yes, we can supply samples, the lead time for samples is 7-10 days. And buyers pay for sample cost and shipping cost.

Contact Us

Submit

Product Recommendation