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Low Voltage 51.2V 280Ah 15kwh Lithium Battery

  • Low Voltage 51.2V 280Ah 15kwh Lithium Battery
  • Low Voltage 51.2V 280Ah 15kwh Lithium Battery

Low Voltage 51.2V 280Ah 15kwh Lithium Battery

The 51.2V 15KWh energy storage lithium battery uses lithium iron phosphate (LiFePO ₄) cells, which are known for their high thermal stability and long cycle life. The battery box reserves three communication ports: CAN, RS485, and RS232. The protocol is fully open and has been connected to mainstream inverters such as Solis, SMA, GoodWe, Growatt, and Deye. Users only need to select the corresponding battery model in the inverter interface, and the system can complete the handshake in 30 seconds and automatically match the charging and discharging curve.
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Product Details

1. Long Cycle Life

The Bluesun 51.2V 280Ah LifePo4 battery utilizes Grade A lithium iron phosphate cells, boasting a cycle life exceeding 8,000 cycles and over 10 years of use, significantly reducing lifetime investment costs.

2. Intelligent BMS with Multiple Safety Features

The built-in advanced battery management system offers protection strategies for overcharge, over-discharge, overcurrent, overtemperature, short circuit, and imbalance. It also communicates with the inverter in real time via CAN/RS485, dynamically adjusting charge and discharge strategies.

3. Stable Operation in a Wide Temperature Range

The battery operates within a temperature range of -20°C to 60°C. Its built-in low-temperature heating element and high-temperature heat sink ensure it maintains ≥90% of its available capacity in both extreme cold and extreme heat. The battery utilizes cobalt-free, lead-free, and nickel-free lithium iron phosphate materials, ensuring zero pollution. It is CE and UN38.3 certified, and its transportation and recycling processes are environmentally friendly, aligning with global carbon reduction and circular economy policies.


Product Parameter
Battery TypeLiFePO4
Nominal Voltage51.2 V
Nominal Capacity200 Ah
Wireless communicationBluetooth (Use the APP)/Wi-Fi(Connect to the Internet)
Nominal Energy10kwh
CommunicationCAN/RS485/232
Screen3.5-inch touch screen
Recommended Charge Current≤100 A
Recommended maximum load power≥8.2 kW
Ultimate Maximum load power≥11 KW
Recommended Charge Voltage57.6V
BMS Charge Cut-Off Voltage58.4V
Discharge temperature range-30 ~ 60 ºC
Unit Dimensions (L x W x H)780*440*450
Gross Weight86KG
Enclosure ProtectionIP65
CertificationsUN38.3/ IEC62619
Cycle life8000 Cycles
Warranty Duration10years
In tems of safteyEquipped with fire extinguishing system

Scene usage

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    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.

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