J-15000A 51.2V 300Ah rack-mount battery three units stacked vertically

J-15000A 51.2V 300Ah rack-mount battery front-left three-quarter view

J-15000A 51.2V 300Ah rack-mount battery straight front view

J-15000A 51.2V 300Ah rack-mount battery front-right three-quarter view

J-15000A 51.2V 300Ah rack-mount battery plain top panel view

J-15000A 51.2V 300Ah rack-mount battery right side with terminal edge

J-15000A 51.2V 300Ah rack-mount battery plain left side view

J-15000A 51.2V 300Ah rack-mount battery terminal and LCD panel view

J-15000A 51.2V 300Ah rack-mount battery front-left product angle

J-15000A 51.2V 300Ah Rack-Mounted LiFePO4 Battery

Rack-mounted 15.36kWh LiFePO4 battery for solar storage and backup power

15.36kWh rack-mounted LiFePO4 energy storage
200A BMS with RS485, RS232 and CAN communication
Rack design supports flexible residential system expansion

Rack-Mounted Energy Storage

LFP51.2-300
51.2V 300Ah LiFePO4 Battery

A high-capacity 15.36kWh rack-mounted LiFePO4 energy storage battery featuring a modular rack-mounted design, intelligent BMS and multiple communication interfaces and flexible parallel expansion for residential solar storage, backup power and energy management applications.

51.2V Rated Voltage

300Ah Rated Capacity

15.36kWh Available Energy

≥6000 Cycle Life

LiFePO4 16S1P cell configuration Built-in 16S 200A intelligent BMS RS485 / RS232 / CAN communication Bluetooth optional / WiFi supported Up to 16 batteries in parallel Wall-mounted compact installation

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General Features

Safe, Flexible and Easy to Integrate

Designed for reliable residential and light-commercial energy storage applications.

Flexible Parallel Expansion

Supports parallel expansion of up to 16 battery units for increased system storage capacity.

Inverter Compatibility

Compatible with multiple mainstream inverter brands through RS485, RS232 and CAN communication.

Intelligent BMS Protection

Integrated BMS continuously manages battery operation and provides multiple electrical protection functions.

Safe LiFePO4 Chemistry

Lithium iron phosphate battery chemistry provides excellent thermal stability and dependable safety, with a wide stated temperature range of -20°C to 60°C.

Battery Protection

Multiple Protection Functions

Intelligent battery management helps protect the energy storage system during daily charging and discharging.

Bluetooth
Connection

Short Circuit
Protection

°C

Temperature
Protection

Charging Overvoltage
Protection

Discharge Undervoltage
Protection

Overcurrent
Protection

Product Specifications

Technical Data

Technical specifications for the LFP51.2-300 rack-mounted LiFePO4 battery.

Product Model J-15000A

Installation Rack Mounted

Model	J-15000A
Available Electricity	15.36kWh
Rated Capacity	300Ah
Cell Configuration	16S1P
BMS Configuration	16S 200A
Rated Voltage	51.2V
Operating Voltage Range	44.8V – 58.4V
Recommended Charge & Discharge Current	100A
Rated Operating Current	200A Continuous / Peak 205A for 10s
Recommended Charge & Discharge Power	5.12kW
Rated Power	10.24kW Continuous / Peak 10.50kW for 10s
Cycle Life	≥6000 Cycles, 80% DOD, 25°C
Communication Mode	RS485 / RS232 / CAN
Parallel Number	Recommended 6 Units / Maximum 16 Units
Remote Data	Bluetooth Optional / WiFi
Weight	108kg
Dimensions (L × W × H)	750 × 483 × 250mm
Operating Temperature	Charging: 0°C to +50°C Discharging: -10°C to +60°C
Relative Humidity	0–95%
Storage Temperature	<3 Months: -10°C to 25°C ≤1 Year: 0°C to 25°C
Maximum Working Altitude	2000m
Class of Protection	IP21
Installation Mode	Floor Mounting
Power Cable Outlet Mode	Side
Standards & Certification	Transport UN38.3

* Test conditions: cell voltage 2.1V–3.7V, new battery at 25±2°C, 0.5C charging and discharging.

* Available power may vary depending on the inverter.

* Rated charge/discharge current and power may change according to temperature and SOC.

* Product specifications are subject to change without notice.

Inverter Compatibility

Supports Mainstream Inverter Brands

Communication compatibility should be confirmed according to the inverter model and protocol before installation.

SMA

Growatt

TBB

Deye

GOODWE

PYLON

LuxpowerTek

Victron Energy

SOFAR

INVT

Application

Flexible Energy Storage Applications

Reliable LiFePO4 energy storage solutions for residential, backup power and distributed energy applications.

Wall-mounted home energy storage battery beside a solar-powered house

Solar & Wind Energy Storage

Store renewable energy for household self-consumption, peak shifting and improved energy independence.

Wall-mounted backup battery installed beside data center server racks

UPS Backup Power

Provide reliable stored power for essential electrical loads during grid interruptions and unexpected outages.

Wall-mounted telecom backup battery beside network equipment and rooftop antenna

Communication Equipment

Stable backup energy for telecom equipment, network systems and communication infrastructure.

Wall-mounted home energy storage battery beside a house at night

Emergency Power Systems

Support critical household and commercial electrical loads when normal grid power becomes unavailable.

Wall-mounted backup battery installed in a bright hospital room

Medical Equipment

Reliable backup energy storage for compatible medical devices and supporting electrical equipment.

Wall-mounted home battery beside an electric car in a garage

Electric Mobility

Flexible battery storage support for electric mobility, charging systems and related distributed energy applications.

Wall-mounted backup battery beside monitors in a security control room

Fire & Security Systems

Backup energy storage for compatible surveillance, access control, alarm and security infrastructure.

Wall-mounted home energy storage battery outside a modern house

Lighting Systems

Stored energy for residential, commercial and emergency lighting applications.

Installation & Integration

Rack-style modular battery installation.
Side power cable outlet design.
RS485, RS232 and CAN communication.
Recommended parallel configuration: up to 6 units.
Maximum parallel expansion: up to 16 units.

Operating Environment

Charging temperature: 0°C to +50°C.
Discharging temperature: -10°C to +60°C.
Relative humidity: 0–95%.
Maximum working altitude: 2000m.
Protection rating: IP21.

FAQ

Frequently Asked Questions

What is the battery capacity?

The LFP51.2-300 provides a rated capacity of 300Ah and 15.36kWh available energy at 51.2V rated voltage.

What is the cycle life?

The specification indicates a cycle life of ≥6000 cycles at 80% DOD and 25°C under the stated test conditions.

Can multiple batteries be connected in parallel?

Yes. Six batteries are recommended for parallel operation, while the system supports a maximum of 16 batteries in parallel.

Which communication interfaces are supported?

The battery supports RS485, RS232 and CAN, with Bluetooth optional and WiFi remote data functionality.

What inverter brands are supported?

The specification lists brands including SMA, Growatt, TBB, Deye, GOODWE, PYLON, LuxpowerTek, Victron Energy, SOFAR and INVT.

How is the battery installed?

This model uses a rack-style battery enclosure with side cable access; final installation configuration should follow the supplied project requirements.