51.2V 15kwh Solar Backup Battery Wall Mounted Lithium LiFePO4 Battery 300ah LFP Battery for Home Energy Solution

Product Description

FT-48300 is a high-performance 51.2V 300Ah LiFePO4 lithium battery designed for residential energy storage, solar power systems, and small commercial energy storage applications. With a large 15.36kWh energy capacity, advanced lithium iron phosphate battery technology, and intelligent BMS protection, this battery provides a safe, reliable, and long-lasting power storage solution.
 
The battery supports 1-15 units parallel connection, allowing flexible capacity expansion according to different energy storage requirements. It is compatible with various solar inverters through CAN and RS485 communication protocols, making it an ideal choice for solar energy storage systems, off-grid applications, backup power, and renewable energy projects.

1. High Capacity 15.36kWh Energy Storage Solution
Equipped with a 51.2V 300Ah LiFePO4 battery pack, FT-48300 provides 15.36kWh usable energy capacity, helping households and businesses store excess solar energy and reduce dependence on the grid.
Nominal Voltage: 51.2V
Capacity: 300Ah
Energy Capacity: 15360Wh
Flexible expansion: 1-15 batteries in parallel
Suitable for:
Home solar energy storage
Off-grid power systems
Backup power supply
Small commercial energy storage
 
2. Safe and Stable LiFePO4 Battery Technology
Using advanced Lithium Iron Phosphate (LiFePO4) cells, FT-48300 delivers excellent safety performance, thermal stability, and long service life compared with traditional lead-acid batteries.
Advantages of LiFePO4 technology:
Higher safety and stability
Excellent high-temperature resistance
Low risk of thermal runaway
Long cycle lifespan
Environmentally friendly energy storage solution
 
3. Long Cycle Life Up to 6000 Times
Designed for long-term energy storage applications, the battery supports 6000 cycles, providing years of reliable operation under proper operating conditions.
Long cycle life helps:
Reduce replacement costs
Improve return on investment
Ensure stable energy supply
 
4. Powerful Charging and Discharging Performance
FT-48300 supports high current operation with:
Maximum Charge Current: 200A
Maximum Discharge Current: 200A
Peak Discharge Current: 300A (3 seconds)
The powerful output capability allows the battery to handle high-load applications and provide stable backup power during grid outages.
 
5. Intelligent Battery Management System (BMS)
The built-in intelligent BMS continuously monitors battery status and provides multiple protection functions.
 
Protection functions include:
Overcharge protection
Over-discharge protection
Over-current protection
Short circuit protection
Temperature protection
Cell balancing management

Communication interfaces:
CAN
RS485

Compatible with mainstream solar inverter systems.

Application Areas

Residential Solar Energy Storage
Store solar energy generated during the day and use it at night to increase energy independence and reduce electricity costs.
Applications:
Residential solar systems
Home backup power
Villa energy storage
Off-grid homes

Commercial Energy Storage
Provide reliable energy storage for small commercial facilities, offices, and industrial applications.
Applications:
Small factories
Commercial buildings
Telecom backup power
Microgrid systems

Off-Grid Power Systems
Ideal for remote areas where stable electricity supply is required.
Applications:
Remote communities
Island power systems
Rural electrification projects
Emergency power systems

Specification

Parameter	FT-48300
Electrical Specifications
Nominal Capacity	300Ah
Nominal Energy	15360Wh
Nominal Voltage	51.2V
Charging Voltage	58.4V
Cut-off Voltage	40V
Terminal	M8
Expandability	1-15 in parallel
Charge Current	200A
Discharging Current	200A
Max. Peak Current (3s)	300A
Communication	RS485, CAN
Operating Temperature	Charge 0~50℃; Discharge -20~60℃
Cycle Life	6000 Times
Safety Standard	UN38.3, MSDS, CE, FCC
Dimensions & Weight
Product Size (L×W×H)	745×570×255mm
Net Weight	~135kg
Package Size (L×W×H)	847×542×365mm
Gross Weight	~140kg
Material
Battery Type	LiFePO4
Case Material	Metal

Packing & Delivery

Certifications

Why Choose Us

Solarasia specializes in advanced solar energy storage solutions for global markets. We provide high-quality lithium batteries, hybrid inverters and complete ESS solutions for residential, commercial and industrial applications.

Our advantages include:

Professional Manufacturer
Strict Quality Control
OEM & ODM Service
Fast Delivery
Competitive Factory Price
Global Export Experience
Technical Support
Customized Energy Storage Solutions

We are committed to helping distributors, EPC contractors and renewable energy companies build reliable and efficient energy storage systems.

Company Profile

, established in 2016, is a preeminent energy technology enterprise. We specialize in solar panels, solar inverters, lithium batteries, solar systems, and more.Our products have been distributed in over 100 countries, earning a remarkable reputation from our loyal customers.

Additionally, our partner manufacturers are equipped with state of the art production equipment and technology, ensuring both the quality and quantity of our products in full compliance with ISO, TUV, and CE standards.All clients enjoy timely responses, professional product guidance, and excellent after sales service. We look forward to building friendly and long term relationships with partners worldwide.Let's embark together on the journey of sustainable energy innovation and development.

FAQ

Q1: What is the capacity of FT-48300 lithium battery?
FT-48300 has a 15.36kWh energy capacity with 51.2V 300Ah configuration.
 
Q2: Can multiple batteries be connected together?
Yes. The battery supports 1-15 units parallel connection for capacity expansion.
 
Q3: What type of battery cells are used?
The battery uses LiFePO4 (Lithium Iron Phosphate) cells, offering high safety and long cycle life.
 
Q4: Is this battery compatible with solar inverters?
Yes. FT-48300 supports CAN and RS485 communication and can work with compatible solar inverter systems.
 
Q5: What certifications does this battery have?
The battery complies with UN38.3, MSDS, CE, and FCC safety standards.